139424758 has 16 divisors (see below), whose sum is σ = 238070016. Its totient is φ = 60619240.

The previous prime is 139424749. The next prime is 139424767. The reversal of 139424758 is 857424931.

It is an interprime number because it is at equal distance from previous prime (139424749) and next prime (139424767).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137266 + ... + 138277.

It is an arithmetic number, because the mean of its divisors is an integer number (14879376).

Almost surely, 2^139424758 is an apocalyptic number.

139424758 is a deficient number, since it is larger than the sum of its proper divisors (98645258).

139424758 is a wasteful number, since it uses less digits than its factorization.

139424758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275579.

The product of its digits is 241920, while the sum is 43.

The square root of 139424758 is about 11807.8261335438. The cubic root of 139424758 is about 518.5372575562.

The spelling of 139424758 in words is "one hundred thirty-nine million, four hundred twenty-four thousand, seven hundred fifty-eight".