140528315 has 8 divisors (see below), whose sum is σ = 168940080. Its totient is φ = 112218592.

The previous prime is 140528303. The next prime is 140528317. The reversal of 140528315 is 513825041.

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 140528315 - 2⁶ = 140528251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140528317) 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, 22445 + ... + 28014.

It is an arithmetic number, because the mean of its divisors is an integer number (21117510).

Almost surely, 2^140528315 is an apocalyptic number.

140528315 is a deficient number, since it is larger than the sum of its proper divisors (28411765).

140528315 is an equidigital number, since it uses as much as digits as its factorization.

140528315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51021.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 140528315 is about 11854.4639271458. The cubic root of 140528315 is about 519.9017504220.

The spelling of 140528315 in words is "one hundred forty million, five hundred twenty-eight thousand, three hundred fifteen".