107121439 has 2 divisors, whose sum is σ = 107121440. Its totient is φ = 107121438.

The previous prime is 107121431. The next prime is 107121457. The reversal of 107121439 is 934121701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 107121439 - 2³ = 107121431 is a prime.

It is a super-2 number, since 2×107121439² = 22950005386861442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107121431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53560719 + 53560720.

It is an arithmetic number, because the mean of its divisors is an integer number (53560720).

Almost surely, 2^107121439 is an apocalyptic number.

107121439 is a deficient number, since it is larger than the sum of its proper divisors (1).

107121439 is an equidigital number, since it uses as much as digits as its factorization.

107121439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 107121439 is about 10349.9487438344. The cubic root of 107121439 is about 474.9254752887.

The spelling of 107121439 in words is "one hundred seven million, one hundred twenty-one thousand, four hundred thirty-nine".