157103305 has 16 divisors (see below), whose sum is σ = 198947520. Its totient is φ = 118767168.

The previous prime is 157103299. The next prime is 157103327. The reversal of 157103305 is 503301751.

157103305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157103305 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157103305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40219 + ... + 43951.

It is an arithmetic number, because the mean of its divisors is an integer number (12434220).

Almost surely, 2^157103305 is an apocalyptic number.

It is an amenable number.

157103305 is a deficient number, since it is larger than the sum of its proper divisors (41844215).

157103305 is a wasteful number, since it uses less digits than its factorization.

157103305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 157103305 is about 12534.0857265299. The cubic root of 157103305 is about 539.5873676729.

The spelling of 157103305 in words is "one hundred fifty-seven million, one hundred three thousand, three hundred five".