140374661 has 24 divisors (see below), whose sum is σ = 176964480. Its totient is φ = 110581632.

The previous prime is 140374657. The next prime is 140374673. The reversal of 140374661 is 166473041.

140374661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140374661 - 2² = 140374657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140374621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33860 + ... + 37778.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^140374661 is an apocalyptic number.

It is an amenable number.

140374661 is a deficient number, since it is larger than the sum of its proper divisors (36589819).

140374661 is a wasteful number, since it uses less digits than its factorization.

140374661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993 (or 3986 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 140374661 is about 11847.9813048468. The cubic root of 140374661 is about 519.7121940403.

The spelling of 140374661 in words is "one hundred forty million, three hundred seventy-four thousand, six hundred sixty-one".