1253423515 has 8 divisors (see below), whose sum is σ = 1592585280. Its totient is φ = 943754112.

The previous prime is 1253423491. The next prime is 1253423537. The reversal of 1253423515 is 5153243521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253423515 - 2¹¹ = 1253421467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7372995 + ... + 7373164.

It is an arithmetic number, because the mean of its divisors is an integer number (199073160).

Almost surely, 2^1253423515 is an apocalyptic number.

1253423515 is a deficient number, since it is larger than the sum of its proper divisors (339161765).

1253423515 is a wasteful number, since it uses less digits than its factorization.

1253423515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14746181.

The product of its digits is 18000, while the sum is 31.

The square root of 1253423515 is about 35403.7217676334. The cubic root of 1253423515 is about 1078.1998804982.

The spelling of 1253423515 in words is "one billion, two hundred fifty-three million, four hundred twenty-three thousand, five hundred fifteen".