139429037 has 4 divisors (see below), whose sum is σ = 152104416. Its totient is φ = 126753660.

The previous prime is 139429033. The next prime is 139429039. The reversal of 139429037 is 730924931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 139429037 - 2² = 139429033 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 (139429033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6337673 + ... + 6337694.

It is an arithmetic number, because the mean of its divisors is an integer number (38026104).

Almost surely, 2^139429037 is an apocalyptic number.

It is an amenable number.

139429037 is a deficient number, since it is larger than the sum of its proper divisors (12675379).

139429037 is a wasteful number, since it uses less digits than its factorization.

139429037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675378.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 139429037 is about 11808.0073255397. The cubic root of 139429037 is about 518.5425622052.

The spelling of 139429037 in words is "one hundred thirty-nine million, four hundred twenty-nine thousand, thirty-seven".