140827815 has 40 divisors (see below), whose sum is σ = 255348720. Its totient is φ = 74245248.

The previous prime is 140827807. The next prime is 140827831. The reversal of 140827815 is 518728041.

140827815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140827815 - 2³ = 140827807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140827815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 34092 + ... + 37998.

It is an arithmetic number, because the mean of its divisors is an integer number (6383718).

Almost surely, 2^140827815 is an apocalyptic number.

140827815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140827815 is a deficient number, since it is larger than the sum of its proper divisors (114520905).

140827815 is an equidigital number, since it uses as much as digits as its factorization.

140827815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013 (or 4004 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 140827815 is about 11867.0895757974. The cubic root of 140827815 is about 520.2708340144.

The spelling of 140827815 in words is "one hundred forty million, eight hundred twenty-seven thousand, eight hundred fifteen".