140979890 has 16 divisors (see below), whose sum is σ = 254048832. Its totient is φ = 56328624.

The previous prime is 140979887. The next prime is 140979901. The reversal of 140979890 is 98979041.

140979890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2027 + ... + 16913.

It is an arithmetic number, because the mean of its divisors is an integer number (15878052).

Almost surely, 2^140979890 is an apocalyptic number.

140979890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140979890 is a deficient number, since it is larger than the sum of its proper divisors (113068942).

140979890 is a wasteful number, since it uses less digits than its factorization.

140979890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15841.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 140979890 is about 11873.4952730862. The cubic root of 140979890 is about 520.4580406976.

The spelling of 140979890 in words is "one hundred forty million, nine hundred seventy-nine thousand, eight hundred ninety".