705157 has 12 divisors (see below), whose sum is σ = 778624. Its totient is φ = 637560.

The previous prime is 705137. The next prime is 705161. The reversal of 705157 is 751507.

It is a de Polignac number, because none of the positive numbers 2^k-705157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16378 + ... + 16420.

2⁷⁰⁵¹⁵⁷ is an apocalyptic number.

It is an amenable number.

705157 is a deficient number, since it is larger than the sum of its proper divisors (73467).

705157 is a wasteful number, since it uses less digits than its factorization.

705157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 705157 is about 839.7362681223. The cubic root of 705157 is about 89.0079107558.

It can be divided in two parts, 705 and 157, that multiplied together give a triangular number (110685 = T₄₇₀).

The spelling of 705157 in words is "seven hundred five thousand, one hundred fifty-seven".