1012521337 has 2 divisors, whose sum is σ = 1012521338. Its totient is φ = 1012521336.

The previous prime is 1012521239. The next prime is 1012521359. The reversal of 1012521337 is 7331252101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845879056 + 166642281 = 29084^2 + 12909^2 .

It is an emirp because it is prime and its reverse (7331252101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012521337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012521437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506260668 + 506260669.

It is an arithmetic number, because the mean of its divisors is an integer number (506260669).

Almost surely, 2^1012521337 is an apocalyptic number.

It is an amenable number.

1012521337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012521337 is an equidigital number, since it uses as much as digits as its factorization.

1012521337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1012521337 is about 31820.1404302369. The cubic root of 1012521337 is about 1004.1564787482.

Adding to 1012521337 its reverse (7331252101), we get a palindrome (8343773438).

The spelling of 1012521337 in words is "one billion, twelve million, five hundred twenty-one thousand, three hundred thirty-seven".