2521134164 has 6 divisors (see below), whose sum is σ = 4411984794. Its totient is φ = 1260567080.

The previous prime is 2521134137. The next prime is 2521134173. The reversal of 2521134164 is 4614311252.

It can be written as a sum of positive squares in only one way, i.e., 2489211664 + 31922500 = 49892^2 + 5650^2 .

It is a super-2 number, since 2×2521134164² = 12712234945775957792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315141767 + ... + 315141774.

It is an arithmetic number, because the mean of its divisors is an integer number (735330799).

Almost surely, 2^2521134164 is an apocalyptic number.

It is an amenable number.

2521134164 is a deficient number, since it is larger than the sum of its proper divisors (1890850630).

2521134164 is a wasteful number, since it uses less digits than its factorization.

2521134164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630283545 (or 630283543 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 2521134164 is about 50210.8968651228. The cubic root of 2521134164 is about 1361.0225448549.

The spelling of 2521134164 in words is "two billion, five hundred twenty-one million, one hundred thirty-four thousand, one hundred sixty-four".