420154 has 8 divisors (see below), whose sum is σ = 720288. Its totient is φ = 180060.

The previous prime is 420149. The next prime is 420163. The reversal of 420154 is 451024.

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

420154 is a modest number, since divided by 154 gives 42 as remainder.

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, 14992 + ... + 15019.

It is an arithmetic number, because the mean of its divisors is an integer number (90036).

2⁴²⁰¹⁵⁴ is an apocalyptic number.

420154 is a deficient number, since it is larger than the sum of its proper divisors (300134).

420154 is a wasteful number, since it uses less digits than its factorization.

420154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30020.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 420154 is about 648.1928725310. The cubic root of 420154 is about 74.8978758200.

Adding to 420154 its reverse (451024), we get a palindrome (871178).

The spelling of 420154 in words is "four hundred twenty thousand, one hundred fifty-four".