145184994 has 16 divisors (see below), whose sum is σ = 322633440. Its totient is φ = 48394980.

The previous prime is 145184951. The next prime is 145185013. The reversal of 145184994 is 499481541.

It is a happy number.

145184994 is a `hidden beast` number, since 1 + 4 + 518 + 49 + 94 = 666.

It is an unprimeable number.

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, 1344252 + ... + 1344359.

It is an arithmetic number, because the mean of its divisors is an integer number (20164590).

Almost surely, 2^145184994 is an apocalyptic number.

145184994 is an abundant number, since it is smaller than the sum of its proper divisors (177448446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145184994 is a wasteful number, since it uses less digits than its factorization.

145184994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688622 (or 2688616 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 145184994 is about 12049.2735880633. The cubic root of 145184994 is about 525.5821135049.

The spelling of 145184994 in words is "one hundred forty-five million, one hundred eighty-four thousand, nine hundred ninety-four".