140461690 has 16 divisors (see below), whose sum is σ = 263824128. Its totient is φ = 53741776.

The previous prime is 140461663. The next prime is 140461691. The reversal of 140461690 is 96164041.

140461690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140461690² = 39458972715312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140461691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305122 + ... + 305581.

It is an arithmetic number, because the mean of its divisors is an integer number (16489008).

Almost surely, 2^140461690 is an apocalyptic number.

140461690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140461690 is a deficient number, since it is larger than the sum of its proper divisors (123362438).

140461690 is a wasteful number, since it uses less digits than its factorization.

140461690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610733.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 140461690 is about 11851.6534711406. The cubic root of 140461690 is about 519.8195749789.

The spelling of 140461690 in words is "one hundred forty million, four hundred sixty-one thousand, six hundred ninety".