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145132325 = 5213446561
BaseRepresentation
bin10001010011010…
…00101100100101
3101010002111010022
420221220230211
5244123213300
622222404525
73411414212
oct1051505445
9333074108
10145132325
1174a18078
1240730745
13240b6420
14153bcb09
15cb1c285
hex8a68b25

145132325 has 12 divisors (see below), whose sum is σ = 193807908. Its totient is φ = 107174400.

The previous prime is 145132319. The next prime is 145132343. The reversal of 145132325 is 523231541.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 11082241 + 134050084 = 3329^2 + 11578^2 .

It is not a de Polignac number, because 145132325 - 26 = 145132261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145132294 and 145132303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222956 + ... + 223605.

It is an arithmetic number, because the mean of its divisors is an integer number (16150659).

Almost surely, 2145132325 is an apocalyptic number.

It is an amenable number.

145132325 is a deficient number, since it is larger than the sum of its proper divisors (48675583).

145132325 is a wasteful number, since it uses less digits than its factorization.

145132325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446584 (or 446579 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 145132325 is about 12047.0878223743. The cubic root of 145132325 is about 525.5185503876.

Adding to 145132325 its reverse (523231541), we get a palindrome (668363866).

The spelling of 145132325 in words is "one hundred forty-five million, one hundred thirty-two thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 325 446561 2232805 5805293 11164025 29026465 145132325