139465259140 has 12 divisors (see below), whose sum is σ = 292877044236. Its totient is φ = 55786103648.

The previous prime is 139465259123. The next prime is 139465259177. The reversal of 139465259140 is 41952564931.

It can be written as a sum of positive squares in 2 ways, for example, as 52896320064 + 86568939076 = 229992^2 + 294226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3486631459 + ... + 3486631498.

It is an arithmetic number, because the mean of its divisors is an integer number (24406420353).

Almost surely, 2^139465259140 is an apocalyptic number.

139465259140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139465259140 is an abundant number, since it is smaller than the sum of its proper divisors (153411785096).

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

139465259140 is a wasteful number, since it uses less digits than its factorization.

139465259140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973262966 (or 6973262964 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 139465259140 in words is "one hundred thirty-nine billion, four hundred sixty-five million, two hundred fifty-nine thousand, one hundred forty".