1259213855 has 8 divisors (see below), whose sum is σ = 1512484512. Its totient is φ = 1006419168.

The previous prime is 1259213807. The next prime is 1259213863. The reversal of 1259213855 is 5583129521.

It is a happy number.

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 1259213855 - 2³⁰ = 185472031 is a prime.

It is a super-2 number, since 2×1259213855² = 3171239065247922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 113144 + ... + 123773.

It is an arithmetic number, because the mean of its divisors is an integer number (189060564).

Almost surely, 2^1259213855 is an apocalyptic number.

1259213855 is a deficient number, since it is larger than the sum of its proper divisors (253270657).

1259213855 is a wasteful number, since it uses less digits than its factorization.

1259213855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237985.

The product of its digits is 108000, while the sum is 41.

The square root of 1259213855 is about 35485.4034075985. The cubic root of 1259213855 is about 1079.8576215486.

The spelling of 1259213855 in words is "one billion, two hundred fifty-nine million, two hundred thirteen thousand, eight hundred fifty-five".