1255445135 has 16 divisors (see below), whose sum is σ = 1742501376. Its totient is φ = 850502688.

The previous prime is 1255445117. The next prime is 1255445143. The reversal of 1255445135 is 5315445521.

It is not a de Polignac number, because 1255445135 - 2¹⁴ = 1255428751 is a prime.

It is a super-2 number, since 2×1255445135² = 3152284973990336450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 1255445095 and 1255445104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213179 + ... + 218988.

It is an arithmetic number, because the mean of its divisors is an integer number (108906336).

Almost surely, 2^1255445135 is an apocalyptic number.

1255445135 is a deficient number, since it is larger than the sum of its proper divisors (487056241).

1255445135 is an equidigital number, since it uses as much as digits as its factorization.

1255445135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432262.

The product of its digits is 60000, while the sum is 35.

The square root of 1255445135 is about 35432.2612177095. The cubic root of 1255445135 is about 1078.7792376470.

The spelling of 1255445135 in words is "one billion, two hundred fifty-five million, four hundred forty-five thousand, one hundred thirty-five".