1258434255 has 32 divisors (see below), whose sum is σ = 2173671360. Its totient is φ = 618024960.

The previous prime is 1258434241. The next prime is 1258434271. The reversal of 1258434255 is 5524348521.

It is not a de Polignac number, because 1258434255 - 2⁷ = 1258434127 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74431 + ... + 89759.

It is an arithmetic number, because the mean of its divisors is an integer number (67927230).

Almost surely, 2^1258434255 is an apocalyptic number.

1258434255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1258434255 is a deficient number, since it is larger than the sum of its proper divisors (915237105).

1258434255 is a wasteful number, since it uses less digits than its factorization.

1258434255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15771.

The product of its digits is 192000, while the sum is 39.

The square root of 1258434255 is about 35474.4169085272. The cubic root of 1258434255 is about 1079.6347230065.

The spelling of 1258434255 in words is "one billion, two hundred fifty-eight million, four hundred thirty-four thousand, two hundred fifty-five".