157532071 has 4 divisors (see below), whose sum is σ = 157665312. Its totient is φ = 157398832.

The previous prime is 157532069. The next prime is 157532117. The reversal of 157532071 is 170235751.

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

It is a cyclic number.

It is not a de Polignac number, because 157532071 - 2¹ = 157532069 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157532371) 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, 64831 + ... + 67216.

It is an arithmetic number, because the mean of its divisors is an integer number (39416328).

Almost surely, 2^157532071 is an apocalyptic number.

157532071 is a deficient number, since it is larger than the sum of its proper divisors (133241).

157532071 is a wasteful number, since it uses less digits than its factorization.

157532071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133240.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 157532071 is about 12551.1780721970. The cubic root of 157532071 is about 540.0778020044.

The spelling of 157532071 in words is "one hundred fifty-seven million, five hundred thirty-two thousand, seventy-one".