145299033 has 24 divisors (see below), whose sum is σ = 229975200. Its totient is φ = 87668160.

The previous prime is 145299029. The next prime is 145299047. The reversal of 145299033 is 330992541.

It is a happy number.

145299033 is a `hidden beast` number, since 14 + 529 + 90 + 33 = 666.

It is not a de Polignac number, because 145299033 - 2² = 145299029 is a prime.

It is a super-2 number, since 2×145299033² = 42223617981470178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145299013) 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, 19918 + ... + 26216.

It is an arithmetic number, because the mean of its divisors is an integer number (9582300).

Almost surely, 2^145299033 is an apocalyptic number.

It is an amenable number.

145299033 is a deficient number, since it is larger than the sum of its proper divisors (84676167).

145299033 is a wasteful number, since it uses less digits than its factorization.

145299033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6549 (or 6546 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 145299033 is about 12054.0048531598. The cubic root of 145299033 is about 525.7196878067.

The spelling of 145299033 in words is "one hundred forty-five million, two hundred ninety-nine thousand, thirty-three".