145325252 has 12 divisors (see below), whose sum is σ = 257177340. Its totient is φ = 71846016.

The previous prime is 145325249. The next prime is 145325287. The reversal of 145325252 is 252523541.

It can be written as a sum of positive squares in 2 ways, for example, as 91508356 + 53816896 = 9566^2 + 7336^2 .

It is a super-2 number, since 2×145325252² = 42238857737727008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203753 + ... + 204464.

It is an arithmetic number, because the mean of its divisors is an integer number (21431445).

Almost surely, 2^145325252 is an apocalyptic number.

It is an amenable number.

145325252 is a deficient number, since it is larger than the sum of its proper divisors (111852088).

145325252 is a wasteful number, since it uses less digits than its factorization.

145325252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408310 (or 408308 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 145325252 is about 12055.0923679580. The cubic root of 145325252 is about 525.7513076902.

Adding to 145325252 its reverse (252523541), we get a palindrome (397848793).

The spelling of 145325252 in words is "one hundred forty-five million, three hundred twenty-five thousand, two hundred fifty-two".