139962816 has 420 divisors, whose sum is σ = 525551400. Its totient is φ = 36578304.

The previous prime is 139962811. The next prime is 139962821. The reversal of 139962816 is 618269931.

It is a happy number.

139962816 is a `hidden beast` number, since 1 + 3 + 9 + 9 + 628 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (139962811) and next prime (139962821).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139962811) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4826290 + ... + 4826318.

Almost surely, 2^139962816 is an apocalyptic number.

139962816 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 139962816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262775700).

139962816 is an abundant number, since it is smaller than the sum of its proper divisors (385588584).

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

139962816 is a wasteful number, since it uses less digits than its factorization.

139962816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 60 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 139962816 is about 11830.5881510599. The cubic root of 139962816 is about 519.2034352334.

The spelling of 139962816 in words is "one hundred thirty-nine million, nine hundred sixty-two thousand, eight hundred sixteen".