722235141 has 18 divisors (see below), whose sum is σ = 1048065330. Its totient is φ = 479267616.

The previous prime is 722235139. The next prime is 722235161. The reversal of 722235141 is 141532227.

It can be written as a sum of positive squares in 3 ways, for example, as 143640225 + 578594916 = 11985^2 + 24054^2 .

It is not a de Polignac number, because 722235141 - 2¹ = 722235139 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722235161) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 650695 + ... + 651803.

Almost surely, 2^722235141 is an apocalyptic number.

It is an amenable number.

722235141 is a deficient number, since it is larger than the sum of its proper divisors (325830189).

722235141 is a wasteful number, since it uses less digits than its factorization.

722235141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1381 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 722235141 is about 26874.4328498296. The cubic root of 722235141 is about 897.2074515617.

Adding to 722235141 its reverse (141532227), we get a palindrome (863767368).

The spelling of 722235141 in words is "seven hundred twenty-two million, two hundred thirty-five thousand, one hundred forty-one".