2520129974 has 4 divisors (see below), whose sum is σ = 3780194964. Its totient is φ = 1260064986.

The previous prime is 2520129973. The next prime is 2520130043. The reversal of 2520129974 is 4799210252.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520129973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630032492 + ... + 630032495.

It is an arithmetic number, because the mean of its divisors is an integer number (945048741).

Almost surely, 2^2520129974 is an apocalyptic number.

2520129974 is a deficient number, since it is larger than the sum of its proper divisors (1260064990).

2520129974 is a wasteful number, since it uses less digits than its factorization.

2520129974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260064989.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 2520129974 is about 50200.8961473797. The cubic root of 2520129974 is about 1360.8418184252.

The spelling of 2520129974 in words is "two billion, five hundred twenty million, one hundred twenty-nine thousand, nine hundred seventy-four".