1522072241 has 2 divisors, whose sum is σ = 1522072242. Its totient is φ = 1522072240.

The previous prime is 1522072171. The next prime is 1522072243. The reversal of 1522072241 is 1422702251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 833534641 + 688537600 = 28871^2 + 26240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1522072241 - 2³⁰ = 448330417 is a prime.

It is a Sophie Germain prime.

Together with 1522072243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1522072241.

It is not a weakly prime, because it can be changed into another prime (1522072243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761036120 + 761036121.

It is an arithmetic number, because the mean of its divisors is an integer number (761036121).

Almost surely, 2^1522072241 is an apocalyptic number.

It is an amenable number.

1522072241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1522072241 is an equidigital number, since it uses as much as digits as its factorization.

1522072241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 1522072241 is about 39013.7442576331. The cubic root of 1522072241 is about 1150.3016829185.

Adding to 1522072241 its reverse (1422702251), we get a palindrome (2944774492).

The spelling of 1522072241 in words is "one billion, five hundred twenty-two million, seventy-two thousand, two hundred forty-one".