1299131352 has 32 divisors (see below), whose sum is σ = 3608698800. Its totient is φ = 433043712.

The previous prime is 1299131341. The next prime is 1299131359. The reversal of 1299131352 is 2531319921.

1299131352 is a `hidden beast` number, since 1 + 299 + 1 + 313 + 52 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299131359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3007033 + ... + 3007464.

Almost surely, 2^1299131352 is an apocalyptic number.

1299131352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1299131352 is an abundant number, since it is smaller than the sum of its proper divisors (2309567448).

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

1299131352 is a wasteful number, since it uses less digits than its factorization.

1299131352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014512 (or 6014502 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 1299131352 is about 36043.4647613128. The cubic root of 1299131352 is about 1091.1497426817.

It can be divided in two parts, 1299 and 131352, that added together give a cube (132651 = 51³).

The spelling of 1299131352 in words is "one billion, two hundred ninety-nine million, one hundred thirty-one thousand, three hundred fifty-two".