803150981 has 2 divisors, whose sum is σ = 803150982. Its totient is φ = 803150980.

The previous prime is 803150977. The next prime is 803150987. The reversal of 803150981 is 189051308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 528586081 + 274564900 = 22991^2 + 16570^2 .

It is a cyclic number.

It is not a de Polignac number, because 803150981 - 2² = 803150977 is a prime.

It is a super-2 number, since 2×803150981² = 1290102996562524722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (803150987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401575490 + 401575491.

It is an arithmetic number, because the mean of its divisors is an integer number (401575491).

Almost surely, 2^803150981 is an apocalyptic number.

It is an amenable number.

803150981 is a deficient number, since it is larger than the sum of its proper divisors (1).

803150981 is an equidigital number, since it uses as much as digits as its factorization.

803150981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 803150981 is about 28339.9185072929. The cubic root of 803150981 is about 929.5349665649.

The spelling of 803150981 in words is "eight hundred three million, one hundred fifty thousand, nine hundred eighty-one".