147723922 has 4 divisors (see below), whose sum is σ = 221585886. Its totient is φ = 73861960.

The previous prime is 147723911. The next prime is 147723923. The reversal of 147723922 is 229327741.

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., 128618281 + 19105641 = 11341^2 + 4371^2 .

It is not an unprimeable number, because it can be changed into a prime (147723923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36930979 + ... + 36930982.

Almost surely, 2^147723922 is an apocalyptic number.

147723922 is a deficient number, since it is larger than the sum of its proper divisors (73861964).

147723922 is an equidigital number, since it uses as much as digits as its factorization.

147723922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73861963.

The product of its digits is 42336, while the sum is 37.

The square root of 147723922 is about 12154.1730282237. The cubic root of 147723922 is about 528.6281383587.

The spelling of 147723922 in words is "one hundred forty-seven million, seven hundred twenty-three thousand, nine hundred twenty-two".