1422621537 has 8 divisors (see below), whose sum is σ = 1897378560. Its totient is φ = 948139440.

The previous prime is 1422621517. The next prime is 1422621559. The reversal of 1422621537 is 7351262241.

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

It is not a de Polignac number, because 1422621537 - 2¹⁰ = 1422620513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1422621498 and 1422621507.

It is not an unprimeable number, because it can be changed into a prime (1422621517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56337 + ... + 77582.

It is an arithmetic number, because the mean of its divisors is an integer number (237172320).

Almost surely, 2^1422621537 is an apocalyptic number.

It is an amenable number.

1422621537 is a deficient number, since it is larger than the sum of its proper divisors (474757023).

1422621537 is a wasteful number, since it uses less digits than its factorization.

1422621537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137463.

The product of its digits is 20160, while the sum is 33.

The square root of 1422621537 is about 37717.6555077327. The cubic root of 1422621537 is about 1124.6821256977.

Adding to 1422621537 its reverse (7351262241), we get a palindrome (8773883778).

The spelling of 1422621537 in words is "one billion, four hundred twenty-two million, six hundred twenty-one thousand, five hundred thirty-seven".