170137157 has 4 divisors (see below), whose sum is σ = 170402400. Its totient is φ = 169871916.

The previous prime is 170137147. The next prime is 170137159. The reversal of 170137157 is 751731071.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 170137157 - 2¹⁴ = 170120773 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 (170137159) 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, 131657 + ... + 132942.

It is an arithmetic number, because the mean of its divisors is an integer number (42600600).

Almost surely, 2^170137157 is an apocalyptic number.

It is an amenable number.

170137157 is a deficient number, since it is larger than the sum of its proper divisors (265243).

170137157 is an equidigital number, since it uses as much as digits as its factorization.

170137157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265242.

The product of its (nonzero) digits is 5145, while the sum is 32.

The square root of 170137157 is about 13043.6634807864. The cubic root of 170137157 is about 554.1147665894.

The spelling of 170137157 in words is "one hundred seventy million, one hundred thirty-seven thousand, one hundred fifty-seven".