145186299 has 12 divisors (see below), whose sum is σ = 216478912. Its totient is φ = 93668400.

The previous prime is 145186297. The next prime is 145186303. The reversal of 145186299 is 992681541.

145186299 is a `hidden beast` number, since 1 + 4 + 5 + 18 + 629 + 9 = 666.

It is not a de Polignac number, because 145186299 - 2¹ = 145186297 is a prime.

It is a super-2 number, since 2×145186299² = 42158122834634802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145186297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259912 + ... + 260469.

Almost surely, 2^145186299 is an apocalyptic number.

145186299 is a deficient number, since it is larger than the sum of its proper divisors (71292613).

145186299 is a wasteful number, since it uses less digits than its factorization.

145186299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520418 (or 520415 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 145186299 is about 12049.3277405837. The cubic root of 145186299 is about 525.5836882374.

The spelling of 145186299 in words is "one hundred forty-five million, one hundred eighty-six thousand, two hundred ninety-nine".