145308404 has 12 divisors (see below), whose sum is σ = 259088004. Its totient is φ = 71283264.

The previous prime is 145308403. The next prime is 145308419. The reversal of 145308404 is 404803541.

145308404 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61622500 + 83685904 = 7850^2 + 9148^2 .

It is a super-2 number, since 2×145308404² = 42229064546054432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145308403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342497 + ... + 342920.

It is an arithmetic number, because the mean of its divisors is an integer number (21590667).

Almost surely, 2^145308404 is an apocalyptic number.

It is an amenable number.

145308404 is a deficient number, since it is larger than the sum of its proper divisors (113779600).

145308404 is a wasteful number, since it uses less digits than its factorization.

145308404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685474 (or 685472 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 145308404 is about 12054.3935558783. The cubic root of 145308404 is about 525.7309895871.

The spelling of 145308404 in words is "one hundred forty-five million, three hundred eight thousand, four hundred four".