1002137797 has 2 divisors, whose sum is σ = 1002137798. Its totient is φ = 1002137796.

The previous prime is 1002137783. The next prime is 1002137839. The reversal of 1002137797 is 7977312001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 578354401 + 423783396 = 24049^2 + 20586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002137797 - 2¹¹ = 1002135749 is a prime.

It is a super-3 number, since 3×1002137797³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002134797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501068898 + 501068899.

It is an arithmetic number, because the mean of its divisors is an integer number (501068899).

Almost surely, 2^1002137797 is an apocalyptic number.

It is an amenable number.

1002137797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002137797 is an equidigital number, since it uses as much as digits as its factorization.

1002137797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 1002137797 is about 31656.5600942364. The cubic root of 1002137797 is about 1000.7120918049.

Adding to 1002137797 its reverse (7977312001), we get a palindrome (8979449798).

The spelling of 1002137797 in words is "one billion, two million, one hundred thirty-seven thousand, seven hundred ninety-seven".