10037981 has 4 divisors (see below), whose sum is σ = 10105500. Its totient is φ = 9970464.

The previous prime is 10037971. The next prime is 10037987. The reversal of 10037981 is 18973001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 372100 + 9665881 = 610^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 10037981 - 2⁶ = 10037917 is a prime.

It is a super-2 number, since 2×10037981² = 201522125112722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10037987) 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 in 3 ways as a sum of consecutive naturals, for example, 33536 + ... + 33833.

It is an arithmetic number, because the mean of its divisors is an integer number (2526375).

Almost surely, 2^10037981 is an apocalyptic number.

It is an amenable number.

10037981 is a deficient number, since it is larger than the sum of its proper divisors (67519).

10037981 is an equidigital number, since it uses as much as digits as its factorization.

10037981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67518.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 10037981 is about 3168.2772921574. The cubic root of 10037981 is about 215.7158830217.

The spelling of 10037981 in words is "ten million, thirty-seven thousand, nine hundred eighty-one".