1245471232 has 20 divisors (see below), whose sum is σ = 2488510926. Its totient is φ = 622735360.

The previous prime is 1245471217. The next prime is 1245471257. The reversal of 1245471232 is 2321745421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1097994496 + 147476736 = 33136^2 + 12144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1245471194 and 1245471203.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215769 + ... + 1216792.

Almost surely, 2^1245471232 is an apocalyptic number.

It is an amenable number.

1245471232 is a deficient number, since it is larger than the sum of its proper divisors (1243039694).

1245471232 is an frugal number, since it uses more digits than its factorization.

1245471232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432579 (or 2432563 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 1245471232 is about 35291.2344924345. The cubic root of 1245471232 is about 1075.9148461055.

The spelling of 1245471232 in words is "one billion, two hundred forty-five million, four hundred seventy-one thousand, two hundred thirty-two".