140670144 has 42 divisors (see below), whose sum is σ = 403207220. Its totient is φ = 46889856.

The previous prime is 140670137. The next prime is 140670149. The reversal of 140670144 is 441076041.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (140670149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121534 + ... + 122685.

Almost surely, 2^140670144 is an apocalyptic number.

It is an amenable number.

140670144 is an abundant number, since it is smaller than the sum of its proper divisors (262537076).

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

140670144 is a wasteful number, since it uses less digits than its factorization.

140670144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244237 (or 244224 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 140670144 is about 11860.4445110628. Note that the first 3 decimals coincide. The cubic root of 140670144 is about 520.0765962119.

The spelling of 140670144 in words is "one hundred forty million, six hundred seventy thousand, one hundred forty-four".