2151141278 has 64 divisors (see below), whose sum is σ = 4009824000. Its totient is φ = 850901760.

The previous prime is 2151141253. The next prime is 2151141347. The reversal of 2151141278 is 8721411512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1265273 + ... + 1266971.

It is an arithmetic number, because the mean of its divisors is an integer number (62653500).

Almost surely, 2^2151141278 is an apocalyptic number.

2151141278 is a deficient number, since it is larger than the sum of its proper divisors (1858682722).

2151141278 is a wasteful number, since it uses less digits than its factorization.

2151141278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its digits is 4480, while the sum is 32.

The square root of 2151141278 is about 46380.3975619011. The cubic root of 2151141278 is about 1290.8912131688.

The spelling of 2151141278 in words is "two billion, one hundred fifty-one million, one hundred forty-one thousand, two hundred seventy-eight".