1255166434 has 4 divisors (see below), whose sum is σ = 1882749654. Its totient is φ = 627583216.

The previous prime is 1255166417. The next prime is 1255166441. The reversal of 1255166434 is 4346615521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4346615521 = 1871 ⋅2323151.

It can be written as a sum of positive squares in only one way, i.e., 678446209 + 576720225 = 26047^2 + 24015^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1255166393 and 1255166402.

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 as a sum of consecutive naturals, namely, 313791607 + ... + 313791610.

Almost surely, 2^1255166434 is an apocalyptic number.

1255166434 is a deficient number, since it is larger than the sum of its proper divisors (627583220).

1255166434 is an equidigital number, since it uses as much as digits as its factorization.

1255166434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627583219.

The product of its digits is 86400, while the sum is 37.

The square root of 1255166434 is about 35428.3281287729. The cubic root of 1255166434 is about 1078.6994043155.

The spelling of 1255166434 in words is "one billion, two hundred fifty-five million, one hundred sixty-six thousand, four hundred thirty-four".