2251616154 has 8 divisors (see below), whose sum is σ = 4503232320. Its totient is φ = 750538716.

The previous prime is 2251616141. The next prime is 2251616183. The reversal of 2251616154 is 4516161522.

It is a sphenic number, since it is the product of 3 distinct primes.

2251616154 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 187634674 + ... + 187634685.

It is an arithmetic number, because the mean of its divisors is an integer number (562904040).

Almost surely, 2^2251616154 is an apocalyptic number.

2251616154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251616154 is a wasteful number, since it uses less digits than its factorization.

2251616154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375269364.

The product of its digits is 14400, while the sum is 33.

The square root of 2251616154 is about 47451.1976034325. The cubic root of 2251616154 is about 1310.6843643622.

Adding to 2251616154 its reverse (4516161522), we get a palindrome (6767777676).

The spelling of 2251616154 in words is "two billion, two hundred fifty-one million, six hundred sixteen thousand, one hundred fifty-four".