157030347 has 4 divisors (see below), whose sum is σ = 209373800. Its totient is φ = 104686896.

The previous prime is 157030333. The next prime is 157030381. The reversal of 157030347 is 743030751.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 157030347 - 2¹² = 157026251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157030327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26171722 + ... + 26171727.

It is an arithmetic number, because the mean of its divisors is an integer number (52343450).

Almost surely, 2^157030347 is an apocalyptic number.

157030347 is a deficient number, since it is larger than the sum of its proper divisors (52343453).

157030347 is an equidigital number, since it uses as much as digits as its factorization.

157030347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52343452.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 157030347 is about 12531.1750047631. The cubic root of 157030347 is about 539.5038275023.

The spelling of 157030347 in words is "one hundred fifty-seven million, thirty thousand, three hundred forty-seven".