1255133451 has 32 divisors (see below), whose sum is σ = 2014064640. Its totient is φ = 685036800.

The previous prime is 1255133441. The next prime is 1255133497. The reversal of 1255133451 is 1543315521.

It is not a de Polignac number, because 1255133451 - 2⁵ = 1255133419 is a prime.

It is a super-3 number, since 3×1255133451³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1255133431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18091 + ... + 53268.

It is an arithmetic number, because the mean of its divisors is an integer number (62939520).

Almost surely, 2^1255133451 is an apocalyptic number.

1255133451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1255133451 is a deficient number, since it is larger than the sum of its proper divisors (758931189).

1255133451 is a wasteful number, since it uses less digits than its factorization.

1255133451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71427.

The product of its digits is 9000, while the sum is 30.

The square root of 1255133451 is about 35427.8626366311. The cubic root of 1255133451 is about 1078.6899556206.

Adding to 1255133451 its reverse (1543315521), we get a palindrome (2798448972).

The spelling of 1255133451 in words is "one billion, two hundred fifty-five million, one hundred thirty-three thousand, four hundred fifty-one".