223457001045251 has 4 divisors (see below), whose sum is σ = 223457136176904. Its totient is φ = 223456865913600.

The previous prime is 223457001045227. The next prime is 223457001045277. The reversal of 223457001045251 is 152540100754322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223457001045251 is a prime.

It is a super-2 number, since 2×223457001045251² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223457001045199 and 223457001045208.

It is not an unprimeable number, because it can be changed into a prime (223457001045211) 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, 65054270 + ... + 68403011.

It is an arithmetic number, because the mean of its divisors is an integer number (55864284044226).

Almost surely, 2^{223457001045251} is an apocalyptic number.

223457001045251 is a deficient number, since it is larger than the sum of its proper divisors (135131653).

223457001045251 is a wasteful number, since it uses less digits than its factorization.

223457001045251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135131652.

The product of its (nonzero) digits is 336000, while the sum is 41.

Adding to 223457001045251 its reverse (152540100754322), we get a palindrome (375997101799573).

The spelling of 223457001045251 in words is "two hundred twenty-three trillion, four hundred fifty-seven billion, one million, forty-five thousand, two hundred fifty-one".