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145948755461 is a prime number
BaseRepresentation
bin1000011111101100111…
…0010100011000000101
3111221201102022222010112
42013323032110120011
54342400340133321
6151014204202405
713354513644455
oct2077316243005
9457642288115
10145948755461
11569952a4173
1224351b39405
13109bc158042
1470c76dbd65
153be30d5a5b
hex21fb394605

145948755461 has 2 divisors, whose sum is σ = 145948755462. Its totient is φ = 145948755460.

The previous prime is 145948755457. The next prime is 145948755497. The reversal of 145948755461 is 164557849541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145289806561 + 658948900 = 381169^2 + 25670^2 .

It is a cyclic number.

It is not a de Polignac number, because 145948755461 - 22 = 145948755457 is a prime.

It is a super-2 number, since 2×1459487554612 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145948755461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145948755451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72974377730 + 72974377731.

It is an arithmetic number, because the mean of its divisors is an integer number (72974377731).

Almost surely, 2145948755461 is an apocalyptic number.

It is an amenable number.

145948755461 is a deficient number, since it is larger than the sum of its proper divisors (1).

145948755461 is an equidigital number, since it uses as much as digits as its factorization.

145948755461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192000, while the sum is 59.

The spelling of 145948755461 in words is "one hundred forty-five billion, nine hundred forty-eight million, seven hundred fifty-five thousand, four hundred sixty-one".