152642172401 has 4 divisors (see below), whose sum is σ = 152644208100. Its totient is φ = 152640136704.

The previous prime is 152642172379. The next prime is 152642172433. The reversal of 152642172401 is 104271246251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105118608400 + 47523564001 = 324220^2 + 217999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152642172401 is a prime.

It is a super-2 number, since 2×152642172401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152642172601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900896 + ... + 1056833.

It is an arithmetic number, because the mean of its divisors is an integer number (38161052025).

Almost surely, 2^152642172401 is an apocalyptic number.

It is an amenable number.

152642172401 is a deficient number, since it is larger than the sum of its proper divisors (2035699).

152642172401 is an equidigital number, since it uses as much as digits as its factorization.

152642172401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035698.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 152642172401 in words is "one hundred fifty-two billion, six hundred forty-two million, one hundred seventy-two thousand, four hundred one".