1292279455 has 4 divisors (see below), whose sum is σ = 1550735352. Its totient is φ = 1033823560.

The previous prime is 1292279441. The next prime is 1292279467. The reversal of 1292279455 is 5549722921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1292279455 - 2²¹ = 1290182303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129227941 + ... + 129227950.

It is an arithmetic number, because the mean of its divisors is an integer number (387683838).

Almost surely, 2^1292279455 is an apocalyptic number.

1292279455 is a deficient number, since it is larger than the sum of its proper divisors (258455897).

1292279455 is an equidigital number, since it uses as much as digits as its factorization.

1292279455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258455896.

The product of its digits is 453600, while the sum is 46.

The square root of 1292279455 is about 35948.2886240778. The cubic root of 1292279455 is about 1089.2280410739.

The spelling of 1292279455 in words is "one billion, two hundred ninety-two million, two hundred seventy-nine thousand, four hundred fifty-five".