1253149207 has 4 divisors (see below), whose sum is σ = 1256760936. Its totient is φ = 1249537480.

The previous prime is 1253149127. The next prime is 1253149211. The reversal of 1253149207 is 7029413521.

It is a happy number.

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 1253149207 - 2²³ = 1244760599 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 (1253149267) 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, 1805344 + ... + 1806037.

It is an arithmetic number, because the mean of its divisors is an integer number (314190234).

Almost surely, 2^1253149207 is an apocalyptic number.

1253149207 is a deficient number, since it is larger than the sum of its proper divisors (3611729).

1253149207 is an equidigital number, since it uses as much as digits as its factorization.

1253149207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611728.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1253149207 is about 35399.8475561689. The cubic root of 1253149207 is about 1078.1212211498.

The spelling of 1253149207 in words is "one billion, two hundred fifty-three million, one hundred forty-nine thousand, two hundred seven".