1622187149 has 8 divisors (see below), whose sum is σ = 1862798880. Its totient is φ = 1397098800.

The previous prime is 1622187139. The next prime is 1622187157. The reversal of 1622187149 is 9417812261.

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 1622187149 - 2¹² = 1622183053 is a prime.

It is a super-2 number, since 2×1622187149² = 5262982292761496402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622187139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3880622 + ... + 3881039.

It is an arithmetic number, because the mean of its divisors is an integer number (232849860).

Almost surely, 2^1622187149 is an apocalyptic number.

1622187149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1622187149 is a deficient number, since it is larger than the sum of its proper divisors (240611731).

1622187149 is a wasteful number, since it uses less digits than its factorization.

1622187149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761691.

The product of its digits is 48384, while the sum is 41.

The square root of 1622187149 is about 40276.3845075498. The cubic root of 1622187149 is about 1174.9885978070.

The spelling of 1622187149 in words is "one billion, six hundred twenty-two million, one hundred eighty-seven thousand, one hundred forty-nine".