139377079 has 8 divisors (see below), whose sum is σ = 145918080. Its totient is φ = 132876216.

The previous prime is 139377053. The next prime is 139377127. The reversal of 139377079 is 970773931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139377079 - 2¹⁵ = 139344311 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 (139377019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2809 + ... + 16930.

It is an arithmetic number, because the mean of its divisors is an integer number (18239760).

Almost surely, 2^139377079 is an apocalyptic number.

139377079 is a deficient number, since it is larger than the sum of its proper divisors (6541001).

139377079 is a wasteful number, since it uses less digits than its factorization.

139377079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20069.

The product of its (nonzero) digits is 250047, while the sum is 46.

The square root of 139377079 is about 11805.8070033353. The cubic root of 139377079 is about 518.4781428600.

The spelling of 139377079 in words is "one hundred thirty-nine million, three hundred seventy-seven thousand, seventy-nine".