32138899 has 12 divisors (see below), whose sum is σ = 36636600. Its totient is φ = 28102464.

The previous prime is 32138881. The next prime is 32138917. The reversal of 32138899 is 99883123.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (32138881) and next prime (32138917).

It is not a de Polignac number, because 32138899 - 2⁵ = 32138867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32138819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1794 + ... + 8215.

It is an arithmetic number, because the mean of its divisors is an integer number (3053050).

Almost surely, 2^32138899 is an apocalyptic number.

32138899 is a deficient number, since it is larger than the sum of its proper divisors (4497701).

32138899 is a wasteful number, since it uses less digits than its factorization.

32138899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10054 (or 10041 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 32138899 is about 5669.1180090028. The cubic root of 32138899 is about 317.9388982455.

The spelling of 32138899 in words is "thirty-two million, one hundred thirty-eight thousand, eight hundred ninety-nine".