145179730 has 8 divisors (see below), whose sum is σ = 261323532. Its totient is φ = 58071888.

The previous prime is 145179709. The next prime is 145179733. The reversal of 145179730 is 37971541.

It can be written as a sum of positive squares in 2 ways, for example, as 142014889 + 3164841 = 11917^2 + 1779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 145179730.

It is not an unprimeable number, because it can be changed into a prime (145179733) 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 3 ways as a sum of consecutive naturals, for example, 7258977 + ... + 7258996.

Almost surely, 2^145179730 is an apocalyptic number.

145179730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145179730 is a deficient number, since it is larger than the sum of its proper divisors (116143802).

145179730 is a wasteful number, since it uses less digits than its factorization.

145179730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14517980.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 145179730 is about 12049.0551496787. The cubic root of 145179730 is about 525.5757613845.

The spelling of 145179730 in words is "one hundred forty-five million, one hundred seventy-nine thousand, seven hundred thirty".