139534488 has 48 divisors (see below), whose sum is σ = 391907880. Its totient is φ = 46510848.

The previous prime is 139534481. The next prime is 139534517. The reversal of 139534488 is 884435931.

139534488 is a `hidden beast` number, since 1 + 39 + 534 + 4 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139534481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33945 + ... + 37832.

Almost surely, 2^139534488 is an apocalyptic number.

139534488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139534488 is an abundant number, since it is smaller than the sum of its proper divisors (252373392).

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

139534488 is an equidigital number, since it uses as much as digits as its factorization.

139534488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71798 (or 71782 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 139534488 is about 11812.4717142518. The cubic root of 139534488 is about 518.6732548585.

The spelling of 139534488 in words is "one hundred thirty-nine million, five hundred thirty-four thousand, four hundred eighty-eight".