1252830997 has 32 divisors (see below), whose sum is σ = 1481048064. Its totient is φ = 1047110400.

The previous prime is 1252830979. The next prime is 1252831003. The reversal of 1252830997 is 7990382521.

It is a cyclic number.

It is not a de Polignac number, because 1252830997 - 2¹⁹ = 1252306709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252831997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1685808 + ... + 1686550.

It is an arithmetic number, because the mean of its divisors is an integer number (46282752).

Almost surely, 2^1252830997 is an apocalyptic number.

1252830997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1252830997 is a deficient number, since it is larger than the sum of its proper divisors (228217067).

1252830997 is a wasteful number, since it uses less digits than its factorization.

1252830997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1252830997 is about 35395.3527599316. The cubic root of 1252830997 is about 1078.0299582754.

The spelling of 1252830997 in words is "one billion, two hundred fifty-two million, eight hundred thirty thousand, nine hundred ninety-seven".