9051881 has 2 divisors, whose sum is σ = 9051882. Its totient is φ = 9051880.

The previous prime is 9051863. The next prime is 9051883. The reversal of 9051881 is 1881509.

It is a happy number.

9051881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4910656 + 4141225 = 2216^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 9051881 - 2¹⁴ = 9035497 is a prime.

It is a super-2 number, since 2×9051881² = 163873099276322, which contains 22 as substring.

Together with 9051883, 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 (9051883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4525940 + 4525941.

It is an arithmetic number, because the mean of its divisors is an integer number (4525941).

Almost surely, 2^9051881 is an apocalyptic number.

It is an amenable number.

9051881 is a deficient number, since it is larger than the sum of its proper divisors (1).

9051881 is an equidigital number, since it uses as much as digits as its factorization.

9051881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 9051881 is about 3008.6344078336. The cubic root of 9051881 is about 208.4073086985.

The spelling of 9051881 in words is "nine million, fifty-one thousand, eight hundred eighty-one".