157861347 has 16 divisors (see below), whose sum is σ = 243256320. Its totient is φ = 89191872.

The previous prime is 157861343. The next prime is 157861349. The reversal of 157861347 is 743168751.

157861347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157861347 - 2² = 157861343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157861299 and 157861308.

It is not an unprimeable number, because it can be changed into a prime (157861343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40363 + ... + 44100.

It is an arithmetic number, because the mean of its divisors is an integer number (15203520).

Almost surely, 2^157861347 is an apocalyptic number.

157861347 is a deficient number, since it is larger than the sum of its proper divisors (85394973).

157861347 is an equidigital number, since it uses as much as digits as its factorization.

157861347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84562.

The product of its digits is 141120, while the sum is 42.

The square root of 157861347 is about 12564.2885592460. The cubic root of 157861347 is about 540.4538331550.

The spelling of 157861347 in words is "one hundred fifty-seven million, eight hundred sixty-one thousand, three hundred forty-seven".