2345574521 has 2 divisors, whose sum is σ = 2345574522. Its totient is φ = 2345574520.

The previous prime is 2345574503. The next prime is 2345574533. The reversal of 2345574521 is 1254755432.

2345574521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1524121600 + 821452921 = 39040^2 + 28661^2 .

It is a cyclic number.

It is not a de Polignac number, because 2345574521 - 2⁶ = 2345574457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2345574551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1172787260 + 1172787261.

It is an arithmetic number, because the mean of its divisors is an integer number (1172787261).

Almost surely, 2^2345574521 is an apocalyptic number.

It is an amenable number.

2345574521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345574521 is an equidigital number, since it uses as much as digits as its factorization.

2345574521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 38.

The square root of 2345574521 is about 48431.1317336277. The cubic root of 2345574521 is about 1328.6678052538.

It can be divided in two parts, 234 and 5574521, that added together give a palindrome (5574755).

The spelling of 2345574521 in words is "two billion, three hundred forty-five million, five hundred seventy-four thousand, five hundred twenty-one".