1245131476 has 12 divisors (see below), whose sum is σ = 2307155508. Its totient is φ = 585944192.

The previous prime is 1245131471. The next prime is 1245131507. The reversal of 1245131476 is 6741315421.

It can be written as a sum of positive squares in 2 ways, for example, as 1140683076 + 104448400 = 33774^2 + 10220^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245131471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9155311 + ... + 9155446.

It is an arithmetic number, because the mean of its divisors is an integer number (192262959).

Almost surely, 2^1245131476 is an apocalyptic number.

It is an amenable number.

1245131476 is a deficient number, since it is larger than the sum of its proper divisors (1062024032).

1245131476 is a wasteful number, since it uses less digits than its factorization.

1245131476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18310778 (or 18310776 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 1245131476 is about 35286.4205608900. The cubic root of 1245131476 is about 1075.8170031472.

Adding to 1245131476 its reverse (6741315421), we get a palindrome (7986446897).

The spelling of 1245131476 in words is "one billion, two hundred forty-five million, one hundred thirty-one thousand, four hundred seventy-six".