2545376121 has 12 divisors (see below), whose sum is σ = 3836509248. Its totient is φ = 1623138264.

The previous prime is 2545376111. The next prime is 2545376123. The reversal of 2545376121 is 1216735452.

2545376121 is a `hidden beast` number, since 2 + 5 + 4 + 5 + 37 + 612 + 1 = 666.

It is not a de Polignac number, because 2545376121 - 2¹⁰ = 2545375097 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2545376123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6148045 + ... + 6148458.

It is an arithmetic number, because the mean of its divisors is an integer number (319709104).

Almost surely, 2^2545376121 is an apocalyptic number.

It is an amenable number.

2545376121 is a deficient number, since it is larger than the sum of its proper divisors (1291133127).

2545376121 is a wasteful number, since it uses less digits than its factorization.

2545376121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12296532 (or 12296529 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 2545376121 is about 50451.7206941448. The cubic root of 2545376121 is about 1365.3709397223.

The spelling of 2545376121 in words is "two billion, five hundred forty-five million, three hundred seventy-six thousand, one hundred twenty-one".