111457001 has 2 divisors, whose sum is σ = 111457002. Its totient is φ = 111457000.

The previous prime is 111456971. The next prime is 111457019. The reversal of 111457001 is 100754111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61387225 + 50069776 = 7835^2 + 7076^2 .

It is a cyclic number.

It is not a de Polignac number, because 111457001 - 2⁶ = 111456937 is a prime.

It is not a weakly prime, because it can be changed into another prime (111457081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55728500 + 55728501.

It is an arithmetic number, because the mean of its divisors is an integer number (55728501).

Almost surely, 2^111457001 is an apocalyptic number.

It is an amenable number.

111457001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111457001 is an equidigital number, since it uses as much as digits as its factorization.

111457001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 111457001 is about 10557.3197829752. The cubic root of 111457001 is about 481.2481995547.

The spelling of 111457001 in words is "one hundred eleven million, four hundred fifty-seven thousand, one".