139776900 has 144 divisors (see below), whose sum is σ = 421848000. Its totient is φ = 35709440.

The previous prime is 139776893. The next prime is 139776947. The reversal of 139776900 is 9677931.

It is a super-2 number, since 2×139776900² = 39075163547220000, which contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 938026 + ... + 938174.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 2^139776900 is an apocalyptic number.

139776900 is a gapful number since it is divisible by the number (10) 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 139776900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210924000).

139776900 is an abundant number, since it is smaller than the sum of its proper divisors (282071100).

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

139776900 is a wasteful number, since it uses less digits than its factorization.

139776900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 139776900 is about 11822.7281115655. The cubic root of 139776900 is about 518.9734432007.

The spelling of 139776900 in words is "one hundred thirty-nine million, seven hundred seventy-six thousand, nine hundred".