102021037 has 2 divisors, whose sum is σ = 102021038. Its totient is φ = 102021036.

The previous prime is 102021001. The next prime is 102021083. The reversal of 102021037 is 730120201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87497316 + 14523721 = 9354^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021037 - 2⁷ = 102020909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102021037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102031037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010518 + 51010519.

It is an arithmetic number, because the mean of its divisors is an integer number (51010519).

Almost surely, 2^102021037 is an apocalyptic number.

It is an amenable number.

102021037 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021037 is an equidigital number, since it uses as much as digits as its factorization.

102021037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 102021037 is about 10100.5463713603. The cubic root of 102021037 is about 467.2649921240.

Adding to 102021037 its reverse (730120201), we get a palindrome (832141238).

The spelling of 102021037 in words is "one hundred two million, twenty-one thousand, thirty-seven".