2123525345 has 16 divisors (see below), whose sum is σ = 2610385920. Its totient is φ = 1657805184.

The previous prime is 2123525333. The next prime is 2123525387. The reversal of 2123525345 is 5435253212.

It is a cyclic number.

It is not a de Polignac number, because 2123525345 - 2⁶ = 2123525281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14144 + ... + 66686.

It is an arithmetic number, because the mean of its divisors is an integer number (163149120).

Almost surely, 2^2123525345 is an apocalyptic number.

It is an amenable number.

2123525345 is a deficient number, since it is larger than the sum of its proper divisors (486860575).

2123525345 is a wasteful number, since it uses less digits than its factorization.

2123525345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52744.

The product of its digits is 36000, while the sum is 32.

The square root of 2123525345 is about 46081.7246313547. The cubic root of 2123525345 is about 1285.3433340982.

Adding to 2123525345 its reverse (5435253212), we get a palindrome (7558778557).

The spelling of 2123525345 in words is "two billion, one hundred twenty-three million, five hundred twenty-five thousand, three hundred forty-five".