145057922 has 4 divisors (see below), whose sum is σ = 217586886. Its totient is φ = 72528960.

The previous prime is 145057919. The next prime is 145057949. The reversal of 145057922 is 229750541.

145057922 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133148521 + 11909401 = 11539^2 + 3451^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36264479 + ... + 36264482.

Almost surely, 2^145057922 is an apocalyptic number.

145057922 is a deficient number, since it is larger than the sum of its proper divisors (72528964).

145057922 is an equidigital number, since it uses as much as digits as its factorization.

145057922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72528963.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 145057922 is about 12043.9994187977. Note that the first 3 decimals coincide. The cubic root of 145057922 is about 525.4287315728.

The spelling of 145057922 in words is "one hundred forty-five million, fifty-seven thousand, nine hundred twenty-two".