2151012554 has 16 divisors (see below), whose sum is σ = 3261573216. Its totient is φ = 1063842000.

The previous prime is 2151012541. The next prime is 2151012557. The reversal of 2151012554 is 4552101512.

It is not an unprimeable number, because it can be changed into a prime (2151012557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235289 + ... + 244259.

It is an arithmetic number, because the mean of its divisors is an integer number (203848326).

Almost surely, 2^2151012554 is an apocalyptic number.

2151012554 is a deficient number, since it is larger than the sum of its proper divisors (1110560662).

2151012554 is a wasteful number, since it uses less digits than its factorization.

2151012554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10261.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2151012554 is about 46379.0098428157. The cubic root of 2151012554 is about 1290.8654637372.

The spelling of 2151012554 in words is "two billion, one hundred fifty-one million, twelve thousand, five hundred fifty-four".