139457024 has 80 divisors (see below), whose sum is σ = 321729408. Its totient is φ = 59154432.

The previous prime is 139457009. The next prime is 139457047. The reversal of 139457024 is 420754931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598412 + ... + 598644.

Almost surely, 2^139457024 is an apocalyptic number.

139457024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139457024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160864704).

139457024 is an abundant number, since it is smaller than the sum of its proper divisors (182272384).

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

139457024 is an equidigital number, since it uses as much as digits as its factorization.

139457024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 139457024 is about 11809.1923517233. The cubic root of 139457024 is about 518.5772548348.

The spelling of 139457024 in words is "one hundred thirty-nine million, four hundred fifty-seven thousand, twenty-four".