146881225 has 6 divisors (see below), whose sum is σ = 182132750. Its totient is φ = 117504960.

The previous prime is 146881211. The next prime is 146881271. The reversal of 146881225 is 522188641.

It can be written as a sum of positive squares in 3 ways, for example, as 59536 + 146821689 = 244^2 + 12117^2 .

It is not a de Polignac number, because 146881225 - 2¹⁹ = 146356937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2937600 + ... + 2937649.

Almost surely, 2^146881225 is an apocalyptic number.

It is an amenable number.

146881225 is a deficient number, since it is larger than the sum of its proper divisors (35251525).

146881225 is an equidigital number, since it uses as much as digits as its factorization.

146881225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875259 (or 5875254 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 146881225 is about 12119.4564647100. The cubic root of 146881225 is about 527.6210274622.

The spelling of 146881225 in words is "one hundred forty-six million, eight hundred eighty-one thousand, two hundred twenty-five".