139352949 has 12 divisors (see below), whose sum is σ = 201425536. Its totient is φ = 92838312.

The previous prime is 139352947. The next prime is 139352957. The reversal of 139352949 is 949253931.

It is not a de Polignac number, because 139352949 - 2¹ = 139352947 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 (139352947) 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, 11292 + ... + 20154.

Almost surely, 2^139352949 is an apocalyptic number.

It is an amenable number.

139352949 is a deficient number, since it is larger than the sum of its proper divisors (62072587).

139352949 is a wasteful number, since it uses less digits than its factorization.

139352949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10616 (or 10613 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 139352949 is about 11804.7850043955. The cubic root of 139352949 is about 518.4482201980.

The spelling of 139352949 in words is "one hundred thirty-nine million, three hundred fifty-two thousand, nine hundred forty-nine".