1231763472 has 30 divisors (see below), whose sum is σ = 3447227342. Its totient is φ = 410587776.

The previous prime is 1231763431. The next prime is 1231763501. The reversal of 1231763472 is 2743671321.

1231763472 is a `hidden beast` number, since 1 + 2 + 3 + 17 + 634 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 859427856 + 372335616 = 29316^2 + 19296^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4276813 + ... + 4277100.

Almost surely, 2^1231763472 is an apocalyptic number.

1231763472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231763472 is an abundant number, since it is smaller than the sum of its proper divisors (2215463870).

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

1231763472 is a wasteful number, since it uses less digits than its factorization.

1231763472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553927 (or 8553918 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 1231763472 is about 35096.4880294311. The cubic root of 1231763472 is about 1071.9530730553.

The spelling of 1231763472 in words is "one billion, two hundred thirty-one million, seven hundred sixty-three thousand, four hundred seventy-two".