1258265383 has 4 divisors (see below), whose sum is σ = 1258653328. Its totient is φ = 1257877440.

The previous prime is 1258265339. The next prime is 1258265413. The reversal of 1258265383 is 3835628521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1258265383 is a prime.

It is a super-2 number, since 2×1258265383² = 3166463548112273378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258265083) 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, 189066 + ... + 195607.

It is an arithmetic number, because the mean of its divisors is an integer number (314663332).

Almost surely, 2^1258265383 is an apocalyptic number.

1258265383 is a deficient number, since it is larger than the sum of its proper divisors (387945).

1258265383 is an equidigital number, since it uses as much as digits as its factorization.

1258265383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387944.

The product of its digits is 345600, while the sum is 43.

The square root of 1258265383 is about 35472.0366345097. The cubic root of 1258265383 is about 1079.5864280108.

The spelling of 1258265383 in words is "one billion, two hundred fifty-eight million, two hundred sixty-five thousand, three hundred eighty-three".