45251123 has 2 divisors, whose sum is σ = 45251124. Its totient is φ = 45251122.

The previous prime is 45251119. The next prime is 45251153. The reversal of 45251123 is 32115254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45251123 - 2² = 45251119 is a prime.

It is a super-2 number, since 2×45251123² = 4095328265522258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45251113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22625561 + 22625562.

It is an arithmetic number, because the mean of its divisors is an integer number (22625562).

Almost surely, 2^45251123 is an apocalyptic number.

45251123 is a deficient number, since it is larger than the sum of its proper divisors (1).

45251123 is an equidigital number, since it uses as much as digits as its factorization.

45251123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 23.

The square root of 45251123 is about 6726.8954949516. The cubic root of 45251123 is about 356.3497462359.

Adding to 45251123 its reverse (32115254), we get a palindrome (77366377).

The spelling of 45251123 in words is "forty-five million, two hundred fifty-one thousand, one hundred twenty-three".