10459991 has 4 divisors (see below), whose sum is σ = 10682592. Its totient is φ = 10237392.

The previous prime is 10459987. The next prime is 10460003. The reversal of 10459991 is 19995401.

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

It is a cyclic number.

It is not a de Polignac number, because 10459991 - 2² = 10459987 is a prime.

It is a super-3 number, since 3×10459991³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10459091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111230 + ... + 111323.

It is an arithmetic number, because the mean of its divisors is an integer number (2670648).

Almost surely, 2^10459991 is an apocalyptic number.

10459991 is a deficient number, since it is larger than the sum of its proper divisors (222601).

10459991 is an equidigital number, since it uses as much as digits as its factorization.

10459991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222600.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 10459991 is about 3234.1909343760. The cubic root of 10459991 is about 218.6974757159.

The spelling of 10459991 in words is "ten million, four hundred fifty-nine thousand, nine hundred ninety-one".