45161722 has 8 divisors (see below), whose sum is σ = 67957236. Its totient is φ = 22509312.

The previous prime is 45161681. The next prime is 45161723. The reversal of 45161722 is 22716154.

It can be written as a sum of positive squares in 2 ways, for example, as 44102881 + 1058841 = 6641^2 + 1029^2 .

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

It is a super-2 number, since 2×45161722² = 4079162268010568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45161723) 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, 34983 + ... + 36250.

Almost surely, 2^45161722 is an apocalyptic number.

45161722 is a deficient number, since it is larger than the sum of its proper divisors (22795514).

45161722 is a wasteful number, since it uses less digits than its factorization.

45161722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71552.

The product of its digits is 3360, while the sum is 28.

The square root of 45161722 is about 6720.2471680735. The cubic root of 45161722 is about 356.1149157694.

Adding to 45161722 its reverse (22716154), we get a palindrome (67877876).

The spelling of 45161722 in words is "forty-five million, one hundred sixty-one thousand, seven hundred twenty-two".