32001157 has 4 divisors (see below), whose sum is σ = 33883596. Its totient is φ = 30118720.

The previous prime is 32001139. The next prime is 32001161. The reversal of 32001157 is 75110023.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21958596 + 10042561 = 4686^2 + 3169^2 .

It is a cyclic number.

It is not a de Polignac number, because 32001157 - 2¹¹ = 31999109 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 (32001127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941194 + ... + 941227.

It is an arithmetic number, because the mean of its divisors is an integer number (8470899).

Almost surely, 2^32001157 is an apocalyptic number.

It is an amenable number.

32001157 is a deficient number, since it is larger than the sum of its proper divisors (1882439).

32001157 is a wasteful number, since it uses less digits than its factorization.

32001157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882438.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 32001157 is about 5656.9565138862. The cubic root of 32001157 is about 317.4840366455.

The spelling of 32001157 in words is "thirty-two million, one thousand, one hundred fifty-seven".