1252447833 has 64 divisors (see below), whose sum is σ = 2233548800. Its totient is φ = 605594880.

The previous prime is 1252447829. The next prime is 1252447877. The reversal of 1252447833 is 3387442521.

It is not a de Polignac number, because 1252447833 - 2² = 1252447829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1252447791 and 1252447800.

It is not an unprimeable number, because it can be changed into a prime (1252447033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 156903 + ... + 164691.

It is an arithmetic number, because the mean of its divisors is an integer number (34899200).

Almost surely, 2^1252447833 is an apocalyptic number.

1252447833 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1252447833 is a deficient number, since it is larger than the sum of its proper divisors (981100967).

1252447833 is a wasteful number, since it uses less digits than its factorization.

1252447833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7862.

The product of its digits is 161280, while the sum is 39.

The square root of 1252447833 is about 35389.9397145573. The cubic root of 1252447833 is about 1077.9200460342.

The spelling of 1252447833 in words is "one billion, two hundred fifty-two million, four hundred forty-seven thousand, eight hundred thirty-three".