1245464631 has 12 divisors (see below), whose sum is σ = 1799349552. Its totient is φ = 830150496.

The previous prime is 1245464617. The next prime is 1245464669. The reversal of 1245464631 is 1364645421.

1245464631 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 4 + 646 + 3 + 1 = 666.

It is not a de Polignac number, because 1245464631 - 2¹³ = 1245456439 is a prime.

It is a super-2 number, since 2×1245464631² = 3102364294143932322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245464681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54435 + ... + 73851.

It is an arithmetic number, because the mean of its divisors is an integer number (149945796).

Almost surely, 2^1245464631 is an apocalyptic number.

1245464631 is a deficient number, since it is larger than the sum of its proper divisors (553884921).

1245464631 is a wasteful number, since it uses less digits than its factorization.

1245464631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26550 (or 26547 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1245464631 is about 35291.1409705042. The cubic root of 1245464631 is about 1075.9129453185.

The spelling of 1245464631 in words is "one billion, two hundred forty-five million, four hundred sixty-four thousand, six hundred thirty-one".