139522380 has 48 divisors (see below), whose sum is σ = 391184640. Its totient is φ = 37156288.

The previous prime is 139522337. The next prime is 139522399. The reversal of 139522380 is 83225931.

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 15 ways as a sum of consecutive naturals, for example, 74617 + ... + 76463.

It is an arithmetic number, because the mean of its divisors is an integer number (8149680).

Almost surely, 2^139522380 is an apocalyptic number.

139522380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139522380 is an abundant number, since it is smaller than the sum of its proper divisors (251662260).

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

139522380 is a wasteful number, since it uses less digits than its factorization.

139522380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 139522380 is about 11811.9591939695. The cubic root of 139522380 is about 518.6582519310.

The spelling of 139522380 in words is "one hundred thirty-nine million, five hundred twenty-two thousand, three hundred eighty".