140056530 has 16 divisors (see below), whose sum is σ = 336135744. Its totient is φ = 37348400.

The previous prime is 140056529. The next prime is 140056531. The reversal of 140056530 is 35650041.

It is an interprime number because it is at equal distance from previous prime (140056529) and next prime (140056531).

It is a self number, because there is not a number n which added to its sum of digits gives 140056530.

It is not an unprimeable number, because it can be changed into a prime (140056531) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2334246 + ... + 2334305.

It is an arithmetic number, because the mean of its divisors is an integer number (21008484).

Almost surely, 2^140056530 is an apocalyptic number.

140056530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140056530 is an abundant number, since it is smaller than the sum of its proper divisors (196079214).

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

140056530 is a wasteful number, since it uses less digits than its factorization.

140056530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668561.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 140056530 is about 11834.5481536052. The cubic root of 140056530 is about 519.3192892786.

The spelling of 140056530 in words is "one hundred forty million, fifty-six thousand, five hundred thirty".