423504149 has 2 divisors, whose sum is σ = 423504150. Its totient is φ = 423504148.

The previous prime is 423504101. The next prime is 423504157. The reversal of 423504149 is 941405324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413308900 + 10195249 = 20330^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 423504149 - 2⁸ = 423503893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423504649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211752074 + 211752075.

It is an arithmetic number, because the mean of its divisors is an integer number (211752075).

Almost surely, 2^423504149 is an apocalyptic number.

It is an amenable number.

423504149 is a deficient number, since it is larger than the sum of its proper divisors (1).

423504149 is an equidigital number, since it uses as much as digits as its factorization.

423504149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 423504149 is about 20579.2164330909. The cubic root of 423504149 is about 750.9641815703.

The spelling of 423504149 in words is "four hundred twenty-three million, five hundred four thousand, one hundred forty-nine".