10150781 has 2 divisors, whose sum is σ = 10150782. Its totient is φ = 10150780.

The previous prime is 10150771. The next prime is 10150787. The reversal of 10150781 is 18705101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8791225 + 1359556 = 2965^2 + 1166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10150781 is a prime.

It is a super-2 number, since 2×10150781² = 206076709819922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10150787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5075390 + 5075391.

It is an arithmetic number, because the mean of its divisors is an integer number (5075391).

Almost surely, 2^10150781 is an apocalyptic number.

It is an amenable number.

10150781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10150781 is an equidigital number, since it uses as much as digits as its factorization.

10150781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 10150781 is about 3186.0290331383. The cubic root of 10150781 is about 216.5208978755.

Adding to 10150781 its reverse (18705101), we get a palindrome (28855882).

The spelling of 10150781 in words is "ten million, one hundred fifty thousand, seven hundred eighty-one".