1623622151 has 2 divisors, whose sum is σ = 1623622152. Its totient is φ = 1623622150.

The previous prime is 1623622129. The next prime is 1623622153. The reversal of 1623622151 is 1512263261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1623622151 - 2¹⁸ = 1623360007 is a prime.

It is a super-2 number, since 2×1623622151² = 5272297778435733602, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1623622153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623622153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811811075 + 811811076.

It is an arithmetic number, because the mean of its divisors is an integer number (811811076).

Almost surely, 2^1623622151 is an apocalyptic number.

1623622151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623622151 is an equidigital number, since it uses as much as digits as its factorization.

1623622151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 1623622151 is about 40294.1950037471. The cubic root of 1623622151 is about 1175.3349643467.

The spelling of 1623622151 in words is "one billion, six hundred twenty-three million, six hundred twenty-two thousand, one hundred fifty-one".