145904422 has 8 divisors (see below), whose sum is σ = 219038400. Its totient is φ = 72891624.

The previous prime is 145904419. The next prime is 145904441. The reversal of 145904422 is 224409541.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27222 + ... + 32137.

It is an arithmetic number, because the mean of its divisors is an integer number (27379800).

Almost surely, 2^145904422 is an apocalyptic number.

145904422 is a deficient number, since it is larger than the sum of its proper divisors (73133978).

145904422 is a wasteful number, since it uses less digits than its factorization.

145904422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60590.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 145904422 is about 12079.0902803150. The cubic root of 145904422 is about 526.4488138315.

The spelling of 145904422 in words is "one hundred forty-five million, nine hundred four thousand, four hundred twenty-two".