401723136225 has 48 divisors (see below), whose sum is σ = 739733725440. Its totient is φ = 213743275200.

The previous prime is 401723136203. The next prime is 401723136281. The reversal of 401723136225 is 522631327104.

401723136225 is a `hidden beast` number, since 4 + 0 + 1 + 7 + 23 + 1 + 3 + 622 + 5 = 666.

It is not a de Polignac number, because 401723136225 - 2⁷ = 401723136097 is a prime.

It is a super-2 number, since 2×401723136225² (a number of 24 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 401723136225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 422649 + ... + 990998.

It is an arithmetic number, because the mean of its divisors is an integer number (15411119280).

Almost surely, 2^401723136225 is an apocalyptic number.

401723136225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

401723136225 is a deficient number, since it is larger than the sum of its proper divisors (338010589215).

401723136225 is a wasteful number, since it uses less digits than its factorization.

401723136225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414087 (or 1414076 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 401723136225 in words is "four hundred one billion, seven hundred twenty-three million, one hundred thirty-six thousand, two hundred twenty-five".