32138497 has 4 divisors (see below), whose sum is σ = 32165716. Its totient is φ = 32111280.

The previous prime is 32138479. The next prime is 32138507. The reversal of 32138497 is 79483123.

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 20875761 + 11262736 = 4569^2 + 3356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32138497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32138417) 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, 11754 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (8041429).

Almost surely, 2^32138497 is an apocalyptic number.

It is an amenable number.

32138497 is a deficient number, since it is larger than the sum of its proper divisors (27219).

32138497 is a wasteful number, since it uses less digits than its factorization.

32138497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27218.

The product of its digits is 36288, while the sum is 37.

The square root of 32138497 is about 5669.0825536413. The cubic root of 32138497 is about 317.9375726248.

The spelling of 32138497 in words is "thirty-two million, one hundred thirty-eight thousand, four hundred ninety-seven".