139777494 has 8 divisors (see below), whose sum is σ = 279555000. Its totient is φ = 46592496.

The previous prime is 139777493. The next prime is 139777501. The reversal of 139777494 is 494777931.

139777494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

139777494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139777493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11648119 + ... + 11648130.

It is an arithmetic number, because the mean of its divisors is an integer number (34944375).

Almost surely, 2^139777494 is an apocalyptic number.

139777494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139777494 is a wasteful number, since it uses less digits than its factorization.

139777494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23296254.

The product of its digits is 1333584, while the sum is 51.

The square root of 139777494 is about 11822.7532326442. The cubic root of 139777494 is about 518.9741783479.

The spelling of 139777494 in words is "one hundred thirty-nine million, seven hundred seventy-seven thousand, four hundred ninety-four".