145725422 has 8 divisors (see below), whose sum is σ = 219721296. Its totient is φ = 72484992.

The previous prime is 145725413. The next prime is 145725443. The reversal of 145725422 is 224527541.

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, 188378 + ... + 189149.

It is an arithmetic number, because the mean of its divisors is an integer number (27465162).

Almost surely, 2^145725422 is an apocalyptic number.

145725422 is a deficient number, since it is larger than the sum of its proper divisors (73995874).

145725422 is a wasteful number, since it uses less digits than its factorization.

145725422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377722.

The product of its digits is 22400, while the sum is 32.

The square root of 145725422 is about 12071.6785079789. The cubic root of 145725422 is about 526.2334379044.

The spelling of 145725422 in words is "one hundred forty-five million, seven hundred twenty-five thousand, four hundred twenty-two".