140197090 has 32 divisors (see below), whose sum is σ = 278043840. Its totient is φ = 50472000.

The previous prime is 140197087. The next prime is 140197129. The reversal of 140197090 is 90791041.

140197090 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 15 ways as a sum of consecutive naturals, for example, 4801 + ... + 17419.

It is an arithmetic number, because the mean of its divisors is an integer number (8688870).

Almost surely, 2^140197090 is an apocalyptic number.

140197090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140197090 is a deficient number, since it is larger than the sum of its proper divisors (137846750).

140197090 is a wasteful number, since it uses less digits than its factorization.

140197090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 140197090 is about 11840.4852096525. The cubic root of 140197090 is about 519.4929598995.

The spelling of 140197090 in words is "one hundred forty million, one hundred ninety-seven thousand, ninety".