1231469568 has 396 divisors, whose sum is σ = 4332057912. Its totient is φ = 348364800.

The previous prime is 1231469567. The next prime is 1231469587. The reversal of 1231469568 is 8659641321.

1231469568 is a `hidden beast` number, since 1 + 23 + 1 + 4 + 69 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231469567) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12192718 + ... + 12192818.

Almost surely, 2^1231469568 is an apocalyptic number.

1231469568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231469568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2166028956).

1231469568 is an abundant number, since it is smaller than the sum of its proper divisors (3100588344).

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

1231469568 is an equidigital number, since it uses as much as digits as its factorization.

1231469568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 113 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1231469568 is about 35092.3006940269. The cubic root of 1231469568 is about 1071.8678087536.

The spelling of 1231469568 in words is "one billion, two hundred thirty-one million, four hundred sixty-nine thousand, five hundred sixty-eight".