109402459 has 2 divisors, whose sum is σ = 109402460. Its totient is φ = 109402458.

The previous prime is 109402457. The next prime is 109402483. The reversal of 109402459 is 954204901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109402459 - 2¹ = 109402457 is a prime.

Together with 109402457, it forms a pair of twin primes.

It is equal to p_6270919 and since 109402459 and 6270919 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (109402453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54701229 + 54701230.

It is an arithmetic number, because the mean of its divisors is an integer number (54701230).

Almost surely, 2^109402459 is an apocalyptic number.

109402459 is a deficient number, since it is larger than the sum of its proper divisors (1).

109402459 is an equidigital number, since it uses as much as digits as its factorization.

109402459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 109402459 is about 10459.5630405864. The cubic root of 109402459 is about 478.2728130510.

The spelling of 109402459 in words is "one hundred nine million, four hundred two thousand, four hundred fifty-nine".