623151469 has 2 divisors, whose sum is σ = 623151470. Its totient is φ = 623151468.

The previous prime is 623151457. The next prime is 623151479. The reversal of 623151469 is 964151326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 623151369 + 100 = 24963^2 + 10^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623151469 is a prime.

It is a super-2 number, since 2×623151469² = 776635506633715922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623151479) 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 as a sum of consecutive naturals, namely, 311575734 + 311575735.

It is an arithmetic number, because the mean of its divisors is an integer number (311575735).

Almost surely, 2^623151469 is an apocalyptic number.

It is an amenable number.

623151469 is a deficient number, since it is larger than the sum of its proper divisors (1).

623151469 is an equidigital number, since it uses as much as digits as its factorization.

623151469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 623151469 is about 24963.0020029643. The cubic root of 623151469 is about 854.1442226721.

The spelling of 623151469 in words is "six hundred twenty-three million, one hundred fifty-one thousand, four hundred sixty-nine".