590201981 has 2 divisors, whose sum is σ = 590201982. Its totient is φ = 590201980.

The previous prime is 590201951. The next prime is 590202001. The reversal of 590201981 is 189102095.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405377956 + 184824025 = 20134^2 + 13595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-590201981 is a prime.

It is a super-2 number, since 2×590201981² = 696676756752648722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (590201951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295100990 + 295100991.

It is an arithmetic number, because the mean of its divisors is an integer number (295100991).

Almost surely, 2^590201981 is an apocalyptic number.

It is an amenable number.

590201981 is a deficient number, since it is larger than the sum of its proper divisors (1).

590201981 is an equidigital number, since it uses as much as digits as its factorization.

590201981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 590201981 is about 24294.0729602922. The cubic root of 590201981 is about 838.8163511320.

The spelling of 590201981 in words is "five hundred ninety million, two hundred one thousand, nine hundred eighty-one".