145503579 has 8 divisors (see below), whose sum is σ = 208928272. Its totient is φ = 89540640.

The previous prime is 145503569. The next prime is 145503581. The reversal of 145503579 is 975305541.

145503579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145503579 - 2⁴ = 145503563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3730861 = 145503579 / (1 + 4 + 5 + 5 + 0 + 3 + 5 + 7 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145503569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1865392 + ... + 1865469.

It is an arithmetic number, because the mean of its divisors is an integer number (26116034).

Almost surely, 2^145503579 is an apocalyptic number.

145503579 is a deficient number, since it is larger than the sum of its proper divisors (63424693).

145503579 is a wasteful number, since it uses less digits than its factorization.

145503579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730877.

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 145503579 is about 12062.4864352255. The cubic root of 145503579 is about 525.9662676494.

The spelling of 145503579 in words is "one hundred forty-five million, five hundred three thousand, five hundred seventy-nine".