146900385 has 20 divisors (see below), whose sum is σ = 263333268. Its totient is φ = 78346656.

The previous prime is 146900371. The next prime is 146900393. The reversal of 146900385 is 583009641.

It can be written as a sum of positive squares in 2 ways, for example, as 86434209 + 60466176 = 9297^2 + 7776^2 .

It is not a de Polignac number, because 146900385 - 2⁵ = 146900353 is a prime.

It is a super-2 number, since 2×146900385² = 43159446226296450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 180954 + ... + 181763.

Almost surely, 2^146900385 is an apocalyptic number.

146900385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146900385 is a deficient number, since it is larger than the sum of its proper divisors (116432883).

146900385 is an equidigital number, since it uses as much as digits as its factorization.

146900385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362734 (or 362725 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 146900385 is about 12120.2469034257. The cubic root of 146900385 is about 527.6439684005.

The spelling of 146900385 in words is "one hundred forty-six million, nine hundred thousand, three hundred eighty-five".