1276225542 has 24 divisors (see below), whose sum is σ = 2769690144. Its totient is φ = 424710864.

The previous prime is 1276225529. The next prime is 1276225549. The reversal of 1276225542 is 2455226721.

1276225542 is a `hidden beast` number, since 1 + 27 + 622 + 5 + 5 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1276225497 and 1276225506.

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 11 ways as a sum of consecutive naturals, for example, 46798 + ... + 68865.

It is an arithmetic number, because the mean of its divisors is an integer number (115403756).

Almost surely, 2^1276225542 is an apocalyptic number.

1276225542 is an abundant number, since it is smaller than the sum of its proper divisors (1493464602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1276225542 is a wasteful number, since it uses less digits than its factorization.

1276225542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116284 (or 116281 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 1276225542 is about 35724.2990414088. The cubic root of 1276225542 is about 1084.6987609711.

The spelling of 1276225542 in words is "one billion, two hundred seventy-six million, two hundred twenty-five thousand, five hundred forty-two".