2498900121 has 27 divisors (see below), whose sum is σ = 3813844671. Its totient is φ = 1576453104.

The previous prime is 2498900119. The next prime is 2498900137. The reversal of 2498900121 is 1210098942.

The square root of 2498900121 is 49989.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2105433225 + 393466896 = 45885^2 + 19836^2 .

It is not a de Polignac number, because 2498900121 - 2¹ = 2498900119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2498900141) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2848935 + ... + 2849811.

Almost surely, 2^2498900121 is an apocalyptic number.

2498900121 is the 49989-th square number.

2498900121 is the 24995-th centered octagonal number.

It is an amenable number.

2498900121 is a deficient number, since it is larger than the sum of its proper divisors (1314944550).

2498900121 is an frugal number, since it uses more digits than its factorization.

2498900121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The cubic root of 2498900121 is about 1357.0097437061.

Multiplying 2498900121 by its sum of digits (36), we get a square (89960404356 = 299934²).

The spelling of 2498900121 in words is "two billion, four hundred ninety-eight million, nine hundred thousand, one hundred twenty-one".