451927307137 has 4 divisors (see below), whose sum is σ = 453207554820. Its totient is φ = 450647059456.

The previous prime is 451927307123. The next prime is 451927307189. The reversal of 451927307137 is 731703729154.

It is a happy number.

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 83622758976 + 368304548161 = 289176^2 + 606881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451927307137 is a prime.

It is a super-2 number, since 2×451927307137² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451927607137) 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, 640123312 + ... + 640124017.

It is an arithmetic number, because the mean of its divisors is an integer number (113301888705).

Almost surely, 2^451927307137 is an apocalyptic number.

It is an amenable number.

451927307137 is a deficient number, since it is larger than the sum of its proper divisors (1280247683).

451927307137 is a wasteful number, since it uses less digits than its factorization.

451927307137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280247682.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 451927307137 in words is "four hundred fifty-one billion, nine hundred twenty-seven million, three hundred seven thousand, one hundred thirty-seven".