145403152 has 20 divisors (see below), whose sum is σ = 285580060. Its totient is φ = 71705088.

The previous prime is 145403123. The next prime is 145403161. The reversal of 145403152 is 251304541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43877376 + 101525776 = 6624^2 + 10076^2 .

It is a super-2 number, since 2×145403152² = 42284153223070208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61077 + ... + 63412.

It is an arithmetic number, because the mean of its divisors is an integer number (14279003).

Almost surely, 2^145403152 is an apocalyptic number.

It is an amenable number.

145403152 is a deficient number, since it is larger than the sum of its proper divisors (140176908).

145403152 is a wasteful number, since it uses less digits than its factorization.

145403152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124570 (or 124564 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145403152 is about 12058.3229348032. The cubic root of 145403152 is about 525.8452319749.

Adding to 145403152 its reverse (251304541), we get a palindrome (396707693).

The spelling of 145403152 in words is "one hundred forty-five million, four hundred three thousand, one hundred fifty-two".