2115731254 has 64 divisors (see below), whose sum is σ = 3976874496. Its totient is φ = 821931264.

The previous prime is 2115731251. The next prime is 2115731281. The reversal of 2115731254 is 4521375112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115731251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3428754 + ... + 3429370.

It is an arithmetic number, because the mean of its divisors is an integer number (62138664).

Almost surely, 2^2115731254 is an apocalyptic number.

2115731254 is a deficient number, since it is larger than the sum of its proper divisors (1861143242).

2115731254 is a wasteful number, since it uses less digits than its factorization.

2115731254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949.

The product of its digits is 8400, while the sum is 31.

The square root of 2115731254 is about 45997.0787550688. The cubic root of 2115731254 is about 1283.7688509510.

The spelling of 2115731254 in words is "two billion, one hundred fifteen million, seven hundred thirty-one thousand, two hundred fifty-four".