1231452072 has 48 divisors (see below), whose sum is σ = 3458713440. Its totient is φ = 410483376.

The previous prime is 1231452049. The next prime is 1231452077. The reversal of 1231452072 is 2702541321.

1231452072 is a `hidden beast` number, since 123 + 14 + 520 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1231452077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314788 + ... + 318675.

It is an arithmetic number, because the mean of its divisors is an integer number (72056530).

Almost surely, 2^1231452072 is an apocalyptic number.

1231452072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231452072 is an abundant number, since it is smaller than the sum of its proper divisors (2227261368).

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

1231452072 is an equidigital number, since it uses as much as digits as its factorization.

1231452072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633484 (or 633468 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1231452072 is about 35092.0514076906. The cubic root of 1231452072 is about 1071.8627325724.

Adding to 1231452072 its reverse (2702541321), we get a palindrome (3933993393).

The spelling of 1231452072 in words is "one billion, two hundred thirty-one million, four hundred fifty-two thousand, seventy-two".