35121997 has 2 divisors, whose sum is σ = 35121998. Its totient is φ = 35121996.

The previous prime is 35121967. The next prime is 35122007. The reversal of 35121997 is 79912153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28665316 + 6456681 = 5354^2 + 2541^2 .

It is a cyclic number.

It is not a de Polignac number, because 35121997 - 2¹⁹ = 34597709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35121907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17560998 + 17560999.

It is an arithmetic number, because the mean of its divisors is an integer number (17560999).

Almost surely, 2^35121997 is an apocalyptic number.

It is an amenable number.

35121997 is a deficient number, since it is larger than the sum of its proper divisors (1).

35121997 is an equidigital number, since it uses as much as digits as its factorization.

35121997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 37.

The square root of 35121997 is about 5926.3814423306. The cubic root of 35121997 is about 327.4862476987.

The spelling of 35121997 in words is "thirty-five million, one hundred twenty-one thousand, nine hundred ninety-seven".