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148387645 = 57171132207
BaseRepresentation
bin10001101100000…
…11011100111101
3101100012212120201
420312003130331
5300441401040
622420243501
73451163020
oct1066033475
9340185521
10148387645
117684091a
1241840591
1324986053
14159c91b7
15d061a9a
hex8d8373d

148387645 has 32 divisors (see below), whose sum is σ = 217479168. Its totient is φ = 94875648.

The previous prime is 148387639. The next prime is 148387661. The reversal of 148387645 is 546783841.

It is a happy number.

It is not a de Polignac number, because 148387645 - 221 = 146290493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148387595 and 148387604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66132 + ... + 68338.

It is an arithmetic number, because the mean of its divisors is an integer number (6796224).

Almost surely, 2148387645 is an apocalyptic number.

It is an amenable number.

148387645 is a deficient number, since it is larger than the sum of its proper divisors (69091523).

148387645 is a wasteful number, since it uses less digits than its factorization.

148387645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349.

The product of its digits is 645120, while the sum is 46.

The square root of 148387645 is about 12181.4467531570. The cubic root of 148387645 is about 529.4186636441.

The spelling of 148387645 in words is "one hundred forty-eight million, three hundred eighty-seven thousand, six hundred forty-five".