1255342634 has 16 divisors (see below), whose sum is σ = 2317555968. Its totient is φ = 496618992.

The previous prime is 1255342609. The next prime is 1255342637. The reversal of 1255342634 is 4362435521.

It is a junction number, because it is equal to n+sod(n) for n = 1255342594 and 1255342603.

It is not an unprimeable number, because it can be changed into a prime (1255342637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448562 + ... + 3448925.

It is an arithmetic number, because the mean of its divisors is an integer number (144847248).

Almost surely, 2^1255342634 is an apocalyptic number.

1255342634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1255342634 is a deficient number, since it is larger than the sum of its proper divisors (1062213334).

1255342634 is a wasteful number, since it uses less digits than its factorization.

1255342634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897509.

The product of its digits is 86400, while the sum is 35.

The square root of 1255342634 is about 35430.8147521335. The cubic root of 1255342634 is about 1078.7498778189.

The spelling of 1255342634 in words is "one billion, two hundred fifty-five million, three hundred forty-two thousand, six hundred thirty-four".