2123528574 has 16 divisors (see below), whose sum is σ = 4253568912. Its totient is φ = 706757568.

The previous prime is 2123528557. The next prime is 2123528579. The reversal of 2123528574 is 4758253212.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123528579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267079 + ... + 274914.

It is an arithmetic number, because the mean of its divisors is an integer number (265848057).

Almost surely, 2^2123528574 is an apocalyptic number.

2123528574 is an abundant number, since it is smaller than the sum of its proper divisors (2130040338).

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

2123528574 is a wasteful number, since it uses less digits than its factorization.

2123528574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542651.

The product of its digits is 134400, while the sum is 39.

The square root of 2123528574 is about 46081.7596669224. The cubic root of 2123528574 is about 1285.3439855889.

The spelling of 2123528574 in words is "two billion, one hundred twenty-three million, five hundred twenty-eight thousand, five hundred seventy-four".