451571157122 has 6 divisors (see below), whose sum is σ = 677358161193. Its totient is φ = 225785103392.

The previous prime is 451571157071. The next prime is 451571157127. The reversal of 451571157122 is 221751175154.

It can be written as a sum of positive squares in 2 ways, for example, as 363984162721 + 87586994401 = 603311^2 + 295951^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=475169.

It is a super-2 number, since 2×451571157122² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 451571157122.

It is not an unprimeable number, because it can be changed into a prime (451571157127) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 712754 + ... + 1187922.

Almost surely, 2^451571157122 is an apocalyptic number.

451571157122 is a deficient number, since it is larger than the sum of its proper divisors (225787004071).

451571157122 is an frugal number, since it uses more digits than its factorization.

451571157122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950340 (or 475171 counting only the distinct ones).

The product of its digits is 98000, while the sum is 41.

The spelling of 451571157122 in words is "four hundred fifty-one billion, five hundred seventy-one million, one hundred fifty-seven thousand, one hundred twenty-two".