1295281155 has 32 divisors (see below), whose sum is σ = 2369908224. Its totient is φ = 591780096.

The previous prime is 1295281139. The next prime is 1295281177. The reversal of 1295281155 is 5511825921.

It is not a de Polignac number, because 1295281155 - 2⁴ = 1295281139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282592 + ... + 287138.

It is an arithmetic number, because the mean of its divisors is an integer number (74059632).

Almost surely, 2^1295281155 is an apocalyptic number.

1295281155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1295281155 is a deficient number, since it is larger than the sum of its proper divisors (1074627069).

1295281155 is a wasteful number, since it uses less digits than its factorization.

1295281155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275.

The product of its digits is 36000, while the sum is 39.

The square root of 1295281155 is about 35990.0146568461. The cubic root of 1295281155 is about 1090.0707400152.

The spelling of 1295281155 in words is "one billion, two hundred ninety-five million, two hundred eighty-one thousand, one hundred fifty-five".