1245505023 has 24 divisors (see below), whose sum is σ = 2067974688. Its totient is φ = 707596992.

The previous prime is 1245505007. The next prime is 1245505031. The reversal of 1245505023 is 3205055421.

It is a happy number.

It is not a de Polignac number, because 1245505023 - 2⁴ = 1245505007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245505003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46240 + ... + 68037.

It is an arithmetic number, because the mean of its divisors is an integer number (86165612).

Almost surely, 2^1245505023 is an apocalyptic number.

1245505023 is a deficient number, since it is larger than the sum of its proper divisors (822469665).

1245505023 is a wasteful number, since it uses less digits than its factorization.

1245505023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114463 (or 114460 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1245505023 is about 35291.7132341291. The cubic root of 1245505023 is about 1075.9245762673.

The spelling of 1245505023 in words is "one billion, two hundred forty-five million, five hundred five thousand, twenty-three".