140298557 has 8 divisors (see below), whose sum is σ = 160415232. Its totient is φ = 120200400.

The previous prime is 140298547. The next prime is 140298563. The reversal of 140298557 is 755892041.

140298557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140298557 - 2⁴ = 140298541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140298517) 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, 21332 + ... + 27122.

It is an arithmetic number, because the mean of its divisors is an integer number (20051904).

Almost surely, 2^140298557 is an apocalyptic number.

It is an amenable number.

140298557 is a deficient number, since it is larger than the sum of its proper divisors (20116675).

140298557 is an equidigital number, since it uses as much as digits as its factorization.

140298557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 140298557 is about 11844.7691830614. The cubic root of 140298557 is about 519.6182565580.

The spelling of 140298557 in words is "one hundred forty million, two hundred ninety-eight thousand, five hundred fifty-seven".