157613501 has 4 divisors (see below), whose sum is σ = 158320512. Its totient is φ = 156906492.

The previous prime is 157613483. The next prime is 157613507. The reversal of 157613501 is 105316751.

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, and also an emirpimes, since its reverse is a distinct semiprime: 105316751 = 17 ⋅6195103.

It is a cyclic number.

It is not a de Polignac number, because 157613501 - 2⁶ = 157613437 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 (157613507) 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, 353171 + ... + 353616.

It is an arithmetic number, because the mean of its divisors is an integer number (39580128).

Almost surely, 2^157613501 is an apocalyptic number.

It is an amenable number.

157613501 is a deficient number, since it is larger than the sum of its proper divisors (707011).

157613501 is an equidigital number, since it uses as much as digits as its factorization.

157613501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707010.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 157613501 is about 12554.4215717013. The cubic root of 157613501 is about 540.1708432915.

The spelling of 157613501 in words is "one hundred fifty-seven million, six hundred thirteen thousand, five hundred one".