139577616 has 240 divisors, whose sum is σ = 449864064. Its totient is φ = 40144896.

The previous prime is 139577587. The next prime is 139577617. The reversal of 139577616 is 616775931.

139577616 is a `hidden beast` number, since 13 + 9 + 577 + 61 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (139577617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2083215 + ... + 2083281.

Almost surely, 2^139577616 is an apocalyptic number.

139577616 is a gapful number since it is divisible by the number (16) 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 139577616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224932032).

139577616 is an abundant number, since it is smaller than the sum of its proper divisors (310286448).

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

139577616 is a wasteful number, since it uses less digits than its factorization.

139577616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 149 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 139577616 is about 11814.2971013937. The cubic root of 139577616 is about 518.7266873735.

The spelling of 139577616 in words is "one hundred thirty-nine million, five hundred seventy-seven thousand, six hundred sixteen".