140292530 has 32 divisors (see below), whose sum is σ = 296407296. Its totient is φ = 46799424.

The previous prime is 140292527. The next prime is 140292541. The reversal of 140292530 is 35292041.

It is a self number, because there is not a number n which added to its sum of digits gives 140292530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24494 + ... + 29673.

It is an arithmetic number, because the mean of its divisors is an integer number (9262728).

Almost surely, 2^140292530 is an apocalyptic number.

140292530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140292530 is an abundant number, since it is smaller than the sum of its proper divisors (156114766).

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

140292530 is a wasteful number, since it uses less digits than its factorization.

140292530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54218.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 140292530 is about 11844.5147642274. The cubic root of 140292530 is about 519.6108157971.

The spelling of 140292530 in words is "one hundred forty million, two hundred ninety-two thousand, five hundred thirty".