145168930 has 24 divisors (see below), whose sum is σ = 275787612. Its totient is φ = 55010016.

The previous prime is 145168927. The next prime is 145168931. The reversal of 145168930 is 39861541.

It can be written as a sum of positive squares in 2 ways, for example, as 143736121 + 1432809 = 11989^2 + 1197^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 145168930.

It is not an unprimeable number, because it can be changed into a prime (145168931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16497 + ... + 23716.

Almost surely, 2^145168930 is an apocalyptic number.

145168930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145168930 is a deficient number, since it is larger than the sum of its proper divisors (130618682).

145168930 is a wasteful number, since it uses less digits than its factorization.

145168930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40258 (or 40239 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 145168930 is about 12048.6069734223. The cubic root of 145168930 is about 525.5627284379.

The spelling of 145168930 in words is "one hundred forty-five million, one hundred sixty-eight thousand, nine hundred thirty".