1245427564 has 12 divisors (see below), whose sum is σ = 2179749600. Its totient is φ = 622641968.

The previous prime is 1245427517. The next prime is 1245427577. The reversal of 1245427564 is 4657245421.

It is a happy number.

It is a super-3 number, since 3×1245427564³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47922 + ... + 69190.

It is an arithmetic number, because the mean of its divisors is an integer number (181645800).

Almost surely, 2^1245427564 is an apocalyptic number.

It is an amenable number.

1245427564 is a deficient number, since it is larger than the sum of its proper divisors (934322036).

1245427564 is a wasteful number, since it uses less digits than its factorization.

1245427564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35912 (or 35910 counting only the distinct ones).

The product of its digits is 268800, while the sum is 40.

The square root of 1245427564 is about 35290.6158064718. The cubic root of 1245427564 is about 1075.9022715882.

The spelling of 1245427564 in words is "one billion, two hundred forty-five million, four hundred twenty-seven thousand, five hundred sixty-four".