145403236 has 24 divisors (see below), whose sum is σ = 280344960. Its totient is φ = 65436000.

The previous prime is 145403231. The next prime is 145403239. The reversal of 145403236 is 632304541.

It is a super-2 number, since 2×145403236² = 42284202078543392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (145403231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11916 + ... + 20803.

It is an arithmetic number, because the mean of its divisors is an integer number (11681040).

Almost surely, 2^145403236 is an apocalyptic number.

It is an amenable number.

145403236 is a deficient number, since it is larger than the sum of its proper divisors (134941724).

145403236 is a wasteful number, since it uses less digits than its factorization.

145403236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32835 (or 32833 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 145403236 is about 12058.3264178741. The cubic root of 145403236 is about 525.8453332359.

Adding to 145403236 its reverse (632304541), we get a palindrome (777707777).

The spelling of 145403236 in words is "one hundred forty-five million, four hundred three thousand, two hundred thirty-six".