146513225 has 24 divisors (see below), whose sum is σ = 195657120. Its totient is φ = 108427520.

The previous prime is 146513221. The next prime is 146513231. The reversal of 146513225 is 522315641.

It is not a de Polignac number, because 146513225 - 2² = 146513221 is a prime.

It is a super-2 number, since 2×146513225² = 42932250199801250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146513221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22154 + ... + 27996.

It is an arithmetic number, because the mean of its divisors is an integer number (8152380).

Almost surely, 2^146513225 is an apocalyptic number.

It is an amenable number.

146513225 is a deficient number, since it is larger than the sum of its proper divisors (49143895).

146513225 is a wasteful number, since it uses less digits than its factorization.

146513225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929 (or 5924 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 146513225 is about 12104.2647442957. The cubic root of 146513225 is about 527.1800205213.

Adding to 146513225 its reverse (522315641), we get a palindrome (668828866).

The spelling of 146513225 in words is "one hundred forty-six million, five hundred thirteen thousand, two hundred twenty-five".