140538715 has 8 divisors (see below), whose sum is σ = 168710400. Its totient is φ = 112388352.

The previous prime is 140538701. The next prime is 140538719. The reversal of 140538715 is 517835041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140538715 - 2¹¹ = 140536667 is a prime.

It is a super-2 number, since 2×140538715² = 39502260827702450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140538719) 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, 21067 + ... + 26923.

It is an arithmetic number, because the mean of its divisors is an integer number (21088800).

Almost surely, 2^140538715 is an apocalyptic number.

140538715 is a deficient number, since it is larger than the sum of its proper divisors (28171685).

140538715 is an equidigital number, since it uses as much as digits as its factorization.

140538715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 140538715 is about 11854.9025723538. The cubic root of 140538715 is about 519.9145754644.

The spelling of 140538715 in words is "one hundred forty million, five hundred thirty-eight thousand, seven hundred fifteen".