139279383 has 12 divisors (see below), whose sum is σ = 201591000. Its totient is φ = 92663856.

The previous prime is 139279321. The next prime is 139279417. The reversal of 139279383 is 383972931.

It is not a de Polignac number, because 139279383 - 2⁹ = 139278871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139279183) 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 11 ways as a sum of consecutive naturals, for example, 11016 + ... + 19997.

It is an arithmetic number, because the mean of its divisors is an integer number (16799250).

Almost surely, 2^139279383 is an apocalyptic number.

139279383 is a deficient number, since it is larger than the sum of its proper divisors (62311617).

139279383 is a wasteful number, since it uses less digits than its factorization.

139279383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31518 (or 31515 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 139279383 is about 11801.6686532032. The cubic root of 139279383 is about 518.3569725769.

The spelling of 139279383 in words is "one hundred thirty-nine million, two hundred seventy-nine thousand, three hundred eighty-three".