1253249507 has 4 divisors (see below), whose sum is σ = 1307738640. Its totient is φ = 1198760376.

The previous prime is 1253249467. The next prime is 1253249509. The reversal of 1253249507 is 7059423521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1253249507 - 2⁸ = 1253249251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253249509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27244532 + ... + 27244577.

It is an arithmetic number, because the mean of its divisors is an integer number (326934660).

Almost surely, 2^1253249507 is an apocalyptic number.

1253249507 is a deficient number, since it is larger than the sum of its proper divisors (54489133).

1253249507 is an equidigital number, since it uses as much as digits as its factorization.

1253249507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54489132.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1253249507 is about 35401.2642005904. The cubic root of 1253249507 is about 1078.1499840651.

The spelling of 1253249507 in words is "one billion, two hundred fifty-three million, two hundred forty-nine thousand, five hundred seven".