1422756561 has 8 divisors (see below), whose sum is σ = 1902477024. Its totient is φ = 945770240.

The previous prime is 1422756557. The next prime is 1422756631. The reversal of 1422756561 is 1656572241.

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 1422756561 - 2² = 1422756557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1422756541) 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, 682320 + ... + 684401.

It is an arithmetic number, because the mean of its divisors is an integer number (237809628).

Almost surely, 2^1422756561 is an apocalyptic number.

It is an amenable number.

1422756561 is a deficient number, since it is larger than the sum of its proper divisors (479720463).

1422756561 is a wasteful number, since it uses less digits than its factorization.

1422756561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367071.

The product of its digits is 100800, while the sum is 39.

The square root of 1422756561 is about 37719.4453962409. The cubic root of 1422756561 is about 1124.7177065534.

The spelling of 1422756561 in words is "one billion, four hundred twenty-two million, seven hundred fifty-six thousand, five hundred sixty-one".