623295149 has 2 divisors, whose sum is σ = 623295150. Its totient is φ = 623295148.

The previous prime is 623295143. The next prime is 623295199. The reversal of 623295149 is 941592326.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561358249 + 61936900 = 23693^2 + 7870^2 .

It is a cyclic number.

It is not a de Polignac number, because 623295149 - 2¹⁶ = 623229613 is a prime.

It is a super-3 number, since 3×623295149³ (a number of 27 digits) contains 333 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 (623295143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311647574 + 311647575.

It is an arithmetic number, because the mean of its divisors is an integer number (311647575).

Almost surely, 2^623295149 is an apocalyptic number.

It is an amenable number.

623295149 is a deficient number, since it is larger than the sum of its proper divisors (1).

623295149 is an equidigital number, since it uses as much as digits as its factorization.

623295149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 623295149 is about 24965.8796960972. The cubic root of 623295149 is about 854.2098642895.

The spelling of 623295149 in words is "six hundred twenty-three million, two hundred ninety-five thousand, one hundred forty-nine".