146987220 has 24 divisors (see below), whose sum is σ = 411564384. Its totient is φ = 39196576.

The previous prime is 146987209. The next prime is 146987237. The reversal of 146987220 is 22789641.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224834 + ... + 1224953.

It is an arithmetic number, because the mean of its divisors is an integer number (17148516).

Almost surely, 2^146987220 is an apocalyptic number.

146987220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146987220 is an abundant number, since it is smaller than the sum of its proper divisors (264577164).

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

146987220 is a wasteful number, since it uses less digits than its factorization.

146987220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449799 (or 2449797 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 146987220 is about 12123.8286032095. The cubic root of 146987220 is about 527.7479139848.

The spelling of 146987220 in words is "one hundred forty-six million, nine hundred eighty-seven thousand, two hundred twenty".