107154721 has 2 divisors, whose sum is σ = 107154722. Its totient is φ = 107154720.

The previous prime is 107154709. The next prime is 107154763. The reversal of 107154721 is 127451701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106915600 + 239121 = 10340^2 + 489^2 .

It is a cyclic number.

It is not a de Polignac number, because 107154721 - 2¹⁵ = 107121953 is a prime.

It is a super-2 number, since 2×107154721² = 22964268465175682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 107154721.

It is not a weakly prime, because it can be changed into another prime (107154781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53577360 + 53577361.

It is an arithmetic number, because the mean of its divisors is an integer number (53577361).

Almost surely, 2^107154721 is an apocalyptic number.

It is an amenable number.

107154721 is a deficient number, since it is larger than the sum of its proper divisors (1).

107154721 is an equidigital number, since it uses as much as digits as its factorization.

107154721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 107154721 is about 10351.5564530171. The cubic root of 107154721 is about 474.9746557115.

The spelling of 107154721 in words is "one hundred seven million, one hundred fifty-four thousand, seven hundred twenty-one".