201880531 has 2 divisors, whose sum is σ = 201880532. Its totient is φ = 201880530.

The previous prime is 201880451. The next prime is 201880543. The reversal of 201880531 is 135088102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201880531 - 2¹³ = 201872339 is a prime.

It is a super-2 number, since 2×201880531² = 81511497593683922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201880531.

It is not a weakly prime, because it can be changed into another prime (201880561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100940265 + 100940266.

It is an arithmetic number, because the mean of its divisors is an integer number (100940266).

Almost surely, 2^201880531 is an apocalyptic number.

201880531 is a deficient number, since it is larger than the sum of its proper divisors (1).

201880531 is an equidigital number, since it uses as much as digits as its factorization.

201880531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 201880531 is about 14208.4668771828. The cubic root of 201880531 is about 586.6307347498.

The spelling of 201880531 in words is "two hundred one million, eight hundred eighty thousand, five hundred thirty-one".