1276225541 has 8 divisors (see below), whose sum is σ = 1334059584. Its totient is φ = 1218587040.

The previous prime is 1276225529. The next prime is 1276225549. The reversal of 1276225541 is 1455226721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1276225541 - 2²² = 1272031237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276225549) 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, 35456 + ... + 61721.

It is an arithmetic number, because the mean of its divisors is an integer number (166757448).

Almost surely, 2^1276225541 is an apocalyptic number.

It is an amenable number.

1276225541 is a deficient number, since it is larger than the sum of its proper divisors (57834043).

1276225541 is an equidigital number, since it uses as much as digits as its factorization.

1276225541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97771.

The product of its digits is 33600, while the sum is 35.

The square root of 1276225541 is about 35724.2990274127. The cubic root of 1276225541 is about 1084.6987606878.

The spelling of 1276225541 in words is "one billion, two hundred seventy-six million, two hundred twenty-five thousand, five hundred forty-one".