1245241172 has 24 divisors (see below), whose sum is σ = 2491487040. Its totient is φ = 533459520.

The previous prime is 1245241169. The next prime is 1245241259. The reversal of 1245241172 is 2711425421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75704 + ... + 90672.

It is an arithmetic number, because the mean of its divisors is an integer number (103811960).

Almost surely, 2^1245241172 is an apocalyptic number.

It is an amenable number.

1245241172 is an abundant number, since it is smaller than the sum of its proper divisors (1246245868).

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

1245241172 is a wasteful number, since it uses less digits than its factorization.

1245241172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17951 (or 17949 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 1245241172 is about 35287.9748923057. The cubic root of 1245241172 is about 1075.8485953549.

Adding to 1245241172 its reverse (2711425421), we get a palindrome (3956666593).

The spelling of 1245241172 in words is "one billion, two hundred forty-five million, two hundred forty-one thousand, one hundred seventy-two".