32139007 has 2 divisors, whose sum is σ = 32139008. Its totient is φ = 32139006.

The previous prime is 32138969. The next prime is 32139031. The reversal of 32139007 is 70093123.

It is a strong prime.

It is an emirp because it is prime and its reverse (70093123) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32139007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32139067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16069503 + 16069504.

It is an arithmetic number, because the mean of its divisors is an integer number (16069504).

Almost surely, 2^32139007 is an apocalyptic number.

32139007 is a deficient number, since it is larger than the sum of its proper divisors (1).

32139007 is an equidigital number, since it uses as much as digits as its factorization.

32139007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 32139007 is about 5669.1275342860. The cubic root of 32139007 is about 317.9392543805.

The spelling of 32139007 in words is "thirty-two million, one hundred thirty-nine thousand, seven".