1012637 has 2 divisors, whose sum is σ = 1012638. Its totient is φ = 1012636.

The previous prime is 1012633. The next prime is 1012657. The reversal of 1012637 is 7362101.

It is a happy number.

It is an a-pointer prime, because the next prime (1012657) can be obtained adding 1012637 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835396 + 177241 = 914^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012637 - 2² = 1012633 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506318 + 506319.

It is an arithmetic number, because the mean of its divisors is an integer number (506319).

2^1012637 is an apocalyptic number.

It is an amenable number.

1012637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012637 is an equidigital number, since it uses as much as digits as its factorization.

1012637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1012637 is about 1006.2986634196. The cubic root of 1012637 is about 100.4194713112.

Adding to 1012637 its reverse (7362101), we get a palindrome (8374738).

The spelling of 1012637 in words is "one million, twelve thousand, six hundred thirty-seven".