2978545231 has 8 divisors (see below), whose sum is σ = 3171181104. Its totient is φ = 2787845760.

The previous prime is 2978545217. The next prime is 2978545249. The reversal of 2978545231 is 1325458792.

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 2978545231 - 2¹³ = 2978537039 is a prime.

It is a super-2 number, since 2×2978545231² = 17743463386225686722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978545291) 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, 480925 + ... + 487078.

It is an arithmetic number, because the mean of its divisors is an integer number (396397638).

Almost surely, 2^2978545231 is an apocalyptic number.

2978545231 is a deficient number, since it is larger than the sum of its proper divisors (192635873).

2978545231 is a wasteful number, since it uses less digits than its factorization.

2978545231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968201.

The product of its digits is 604800, while the sum is 46.

The square root of 2978545231 is about 54576.0499761571. The cubic root of 2978545231 is about 1438.8032158583.

The spelling of 2978545231 in words is "two billion, nine hundred seventy-eight million, five hundred forty-five thousand, two hundred thirty-one".