978251495 has 8 divisors (see below), whose sum is σ = 1264202016. Its totient is φ = 722401056.

The previous prime is 978251453. The next prime is 978251497. The reversal of 978251495 is 594152879.

978251495 is digitally balanced in base 6, 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 de Polignac number, because none of the positive numbers 2^k-978251495 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 (978251497) 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, 7524947 + ... + 7525076.

It is an arithmetic number, because the mean of its divisors is an integer number (158025252).

Almost surely, 2^978251495 is an apocalyptic number.

978251495 is a deficient number, since it is larger than the sum of its proper divisors (285950521).

978251495 is a wasteful number, since it uses less digits than its factorization.

978251495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15050041.

The product of its digits is 907200, while the sum is 50.

The square root of 978251495 is about 31277.0122454176. The cubic root of 978251495 is about 992.6972987034.

The spelling of 978251495 in words is "nine hundred seventy-eight million, two hundred fifty-one thousand, four hundred ninety-five".