105239157 has 32 divisors (see below), whose sum is σ = 152401920. Its totient is φ = 64385280.

The previous prime is 105239149. The next prime is 105239161. The reversal of 105239157 is 751932501.

It is not a de Polignac number, because 105239157 - 2³ = 105239149 is a prime.

It is a super-2 number, since 2×105239157² = 22150560332141298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105239177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436557 + ... + 436797.

It is an arithmetic number, because the mean of its divisors is an integer number (4762560).

Almost surely, 2^105239157 is an apocalyptic number.

It is an amenable number.

105239157 is a deficient number, since it is larger than the sum of its proper divisors (47162763).

105239157 is a wasteful number, since it uses less digits than its factorization.

105239157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 105239157 is about 10258.6137952454. The cubic root of 105239157 is about 472.1273072403.

The spelling of 105239157 in words is "one hundred five million, two hundred thirty-nine thousand, one hundred fifty-seven".