1255142343 has 64 divisors (see below), whose sum is σ = 2113413120. Its totient is φ = 644986368.

The previous prime is 1255142333. The next prime is 1255142377. The reversal of 1255142343 is 3432415521.

It is not a de Polignac number, because 1255142343 - 2⁴ = 1255142327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255142343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255142323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3226393 + ... + 3226781.

It is an arithmetic number, because the mean of its divisors is an integer number (33022080).

Almost surely, 2^1255142343 is an apocalyptic number.

1255142343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1255142343 is a deficient number, since it is larger than the sum of its proper divisors (858270777).

1255142343 is a wasteful number, since it uses less digits than its factorization.

1255142343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its digits is 14400, while the sum is 30.

The square root of 1255142343 is about 35427.9881308550. The cubic root of 1255142343 is about 1078.6925029429.

Adding to 1255142343 its reverse (3432415521), we get a palindrome (4687557864).

The spelling of 1255142343 in words is "one billion, two hundred fifty-five million, one hundred forty-two thousand, three hundred forty-three".