423105149 has 4 divisors (see below), whose sum is σ = 423149760. Its totient is φ = 423060540.

The previous prime is 423105083. The next prime is 423105181. The reversal of 423105149 is 941501324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 423105149 - 2¹⁶ = 423039613 is a prime.

It is a super-2 number, since 2×423105149² = 358035934220624402, 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 (423101149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787 + ... + 29144.

It is an arithmetic number, because the mean of its divisors is an integer number (105787440).

Almost surely, 2^423105149 is an apocalyptic number.

It is an amenable number.

423105149 is a deficient number, since it is larger than the sum of its proper divisors (44611).

423105149 is a wasteful number, since it uses less digits than its factorization.

423105149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44610.

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

The square root of 423105149 is about 20569.5199020298. The cubic root of 423105149 is about 750.7282697871.

The spelling of 423105149 in words is "four hundred twenty-three million, one hundred five thousand, one hundred forty-nine".