145200999 has 16 divisors (see below), whose sum is σ = 200682720. Its totient is φ = 93273600.

The previous prime is 145200997. The next prime is 145201027. The reversal of 145200999 is 999002541.

It is not a de Polignac number, because 145200999 - 2¹ = 145200997 is a prime.

It is a super-2 number, since 2×145200999² = 42166660221196002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145200997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50899 + ... + 53675.

It is an arithmetic number, because the mean of its divisors is an integer number (12542670).

Almost surely, 2^145200999 is an apocalyptic number.

145200999 is a deficient number, since it is larger than the sum of its proper divisors (55481721).

145200999 is a wasteful number, since it uses less digits than its factorization.

145200999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 145200999 is about 12049.9377176814. The cubic root of 145200999 is about 525.6014259522.

The spelling of 145200999 in words is "one hundred forty-five million, two hundred thousand, nine hundred ninety-nine".