200372981 has 2 divisors, whose sum is σ = 200372982. Its totient is φ = 200372980.

The previous prime is 200372957. The next prime is 200373013. The reversal of 200372981 is 189273002.

It is an a-pointer prime, because the next prime (200373013) can be obtained adding 200372981 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196252081 + 4120900 = 14009^2 + 2030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200372981 is a prime.

It is a super-2 number, since 2×200372981² = 80298663029652722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200372911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100186490 + 100186491.

It is an arithmetic number, because the mean of its divisors is an integer number (100186491).

Almost surely, 2^200372981 is an apocalyptic number.

It is an amenable number.

200372981 is a deficient number, since it is larger than the sum of its proper divisors (1).

200372981 is an equidigital number, since it uses as much as digits as its factorization.

200372981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 200372981 is about 14155.3163511099. The cubic root of 200372981 is about 585.1668562441.

The spelling of 200372981 in words is "two hundred million, three hundred seventy-two thousand, nine hundred eighty-one".