145452722 has 8 divisors (see below), whose sum is σ = 218233116. Its totient is φ = 72708352.

The previous prime is 145452721. The next prime is 145452737. The reversal of 145452722 is 227254541.

145452722 is digitally balanced in base 3, because in such base 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 125193721 + 20259001 = 11189^2 + 4501^2 .

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

It is not an unprimeable number, because it can be changed into a prime (145452721) 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, 6278 + ... + 18174.

Almost surely, 2^145452722 is an apocalyptic number.

145452722 is a deficient number, since it is larger than the sum of its proper divisors (72780394).

145452722 is a wasteful number, since it uses less digits than its factorization.

145452722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18012.

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

The square root of 145452722 is about 12060.3781864418. The cubic root of 145452722 is about 525.9049812221.

The spelling of 145452722 in words is "one hundred forty-five million, four hundred fifty-two thousand, seven hundred twenty-two".