35890121 has 2 divisors, whose sum is σ = 35890122. Its totient is φ = 35890120.

The previous prime is 35890109. The next prime is 35890123. The reversal of 35890121 is 12109853.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24364096 + 11526025 = 4936^2 + 3395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35890121 is a prime.

Together with 35890123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (35890123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17945060 + 17945061.

It is an arithmetic number, because the mean of its divisors is an integer number (17945061).

Almost surely, 2^35890121 is an apocalyptic number.

It is an amenable number.

35890121 is a deficient number, since it is larger than the sum of its proper divisors (1).

35890121 is an equidigital number, since it uses as much as digits as its factorization.

35890121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 35890121 is about 5990.8364190654. The cubic root of 35890121 is about 329.8564450597.

Adding to 35890121 its reverse (12109853), we get a palindrome (47999974).

The spelling of 35890121 in words is "thirty-five million, eight hundred ninety thousand, one hundred twenty-one".