139651040 has 48 divisors (see below), whose sum is σ = 330728832. Its totient is φ = 55724544.

The previous prime is 139651033. The next prime is 139651067. The reversal of 139651040 is 40156931.

It is a junction number, because it is equal to n+sod(n) for n = 139650994 and 139651012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88337 + ... + 89903.

It is an arithmetic number, because the mean of its divisors is an integer number (6890184).

Almost surely, 2^139651040 is an apocalyptic number.

139651040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139651040 is an abundant number, since it is smaller than the sum of its proper divisors (191077792).

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

139651040 is a wasteful number, since it uses less digits than its factorization.

139651040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 139651040 is about 11817.4041142715. The cubic root of 139651040 is about 518.8176291564.

The spelling of 139651040 in words is "one hundred thirty-nine million, six hundred fifty-one thousand, forty".