146291216 has 30 divisors (see below), whose sum is σ = 286040286. Its totient is φ = 72480000.

The previous prime is 146291177. The next prime is 146291219. The reversal of 146291216 is 612192641.

It can be written as a sum of positive squares in only one way, i.e., 145926400 + 364816 = 12080^2 + 604^2 .

It is a super-2 number, since 2×146291216² = 42802239757517312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146291219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364616 + ... + 365016.

Almost surely, 2^146291216 is an apocalyptic number.

146291216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

146291216 is a deficient number, since it is larger than the sum of its proper divisors (139749070).

146291216 is an equidigital number, since it uses as much as digits as its factorization.

146291216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 554 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 146291216 is about 12095.0905742785. The cubic root of 146291216 is about 526.9136102716.

The spelling of 146291216 in words is "one hundred forty-six million, two hundred ninety-one thousand, two hundred sixteen".