1258878955 has 8 divisors (see below), whose sum is σ = 1511510832. Its totient is φ = 1006532448.

The previous prime is 1258878913. The next prime is 1258878967. The reversal of 1258878955 is 5598788521.

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 1258878955 - 2¹³ = 1258870763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1258878955.

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, 61512 + ... + 79381.

It is an arithmetic number, because the mean of its divisors is an integer number (188938854).

Almost surely, 2^1258878955 is an apocalyptic number.

1258878955 is a deficient number, since it is larger than the sum of its proper divisors (252631877).

1258878955 is a wasteful number, since it uses less digits than its factorization.

1258878955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142685.

The product of its digits is 8064000, while the sum is 58.

The square root of 1258878955 is about 35480.6842521392. The cubic root of 1258878955 is about 1079.7618802304.

The spelling of 1258878955 in words is "one billion, two hundred fifty-eight million, eight hundred seventy-eight thousand, nine hundred fifty-five".