420123146 has 8 divisors (see below), whose sum is σ = 645555204. Its totient is φ = 204938080.

The previous prime is 420123133. The next prime is 420123161. The reversal of 420123146 is 641321024.

It can be written as a sum of positive squares in 2 ways, for example, as 404211025 + 15912121 = 20105^2 + 3989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561645 + ... + 2561808.

Almost surely, 2^420123146 is an apocalyptic number.

420123146 is a deficient number, since it is larger than the sum of its proper divisors (225432058).

420123146 is a wasteful number, since it uses less digits than its factorization.

420123146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123496.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 420123146 is about 20496.9057664809. The cubic root of 420123146 is about 748.9604240044.

The spelling of 420123146 in words is "four hundred twenty million, one hundred twenty-three thousand, one hundred forty-six".