1245115452 has 48 divisors (see below), whose sum is σ = 3325038080. Its totient is φ = 355240512.

The previous prime is 1245115447. The next prime is 1245115483. The reversal of 1245115452 is 2545115421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50874 + ... + 71262.

Almost surely, 2^1245115452 is an apocalyptic number.

1245115452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1245115452 is an abundant number, since it is smaller than the sum of its proper divisors (2079922628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245115452 is a wasteful number, since it uses less digits than its factorization.

1245115452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21130 (or 21128 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 1245115452 is about 35286.1935039755. The cubic root of 1245115452 is about 1075.8123881150.

The spelling of 1245115452 in words is "one billion, two hundred forty-five million, one hundred fifteen thousand, four hundred fifty-two".