157328501 has 4 divisors (see below), whose sum is σ = 171631104. Its totient is φ = 143025900.

The previous prime is 157328491. The next prime is 157328513. The reversal of 157328501 is 105823751.

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: 105823751 = 11 ⋅9620341.

It is a cyclic number.

It is not a de Polignac number, because 157328501 - 2¹⁴ = 157312117 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 (157328581) 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, 7151285 + ... + 7151306.

It is an arithmetic number, because the mean of its divisors is an integer number (42907776).

Almost surely, 2^157328501 is an apocalyptic number.

157328501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

157328501 is a deficient number, since it is larger than the sum of its proper divisors (14302603).

157328501 is a wasteful number, since it uses less digits than its factorization.

157328501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14302602.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 157328501 is about 12543.0658532912. The cubic root of 157328501 is about 539.8450641466.

The spelling of 157328501 in words is "one hundred fifty-seven million, three hundred twenty-eight thousand, five hundred one".