151646420 has 48 divisors (see below), whose sum is σ = 330290688. Its totient is φ = 58423680.

The previous prime is 151646401. The next prime is 151646459. The reversal of 151646420 is 24646151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171299 + ... + 172181.

It is an arithmetic number, because the mean of its divisors is an integer number (6881056).

Almost surely, 2^151646420 is an apocalyptic number.

151646420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151646420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165145344).

151646420 is an abundant number, since it is smaller than the sum of its proper divisors (178644268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151646420 is a wasteful number, since it uses less digits than its factorization.

151646420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 151646420 is about 12314.4800945878. The cubic root of 151646420 is about 533.2661955419.

The spelling of 151646420 in words is "one hundred fifty-one million, six hundred forty-six thousand, four hundred twenty".