1315229472 has 54 divisors (see below), whose sum is σ = 3741934833. Its totient is φ = 438204672.

The previous prime is 1315229471. The next prime is 1315229477. The reversal of 1315229472 is 2749225131.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1315229472 is a `hidden beast` number, since 13 + 152 + 29 + 472 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 931226256 + 384003216 = 30516^2 + 19596^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=25644.

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

It is not an unprimeable number, because it can be changed into a prime (1315229471) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 614388 + ... + 616524.

Almost surely, 2^1315229472 is an apocalyptic number.

1315229472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1315229472 is an abundant number, since it is smaller than the sum of its proper divisors (2426705361).

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

1315229472 is an frugal number, since it uses more digits than its factorization.

1315229472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290 (or 2142 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1315229472 is about 36266.0925934956. The cubic root of 1315229472 is about 1095.6382292944.

It can be divided in two parts, 13152 and 29472, that added together give a palindrome (42624).

The spelling of 1315229472 in words is "one billion, three hundred fifteen million, two hundred twenty-nine thousand, four hundred seventy-two".