10145581 has 8 divisors (see below), whose sum is σ = 10490400. Its totient is φ = 9806640.

The previous prime is 10145567. The next prime is 10145591. The reversal of 10145581 is 18554101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10145581 - 2¹⁵ = 10112813 is a prime.

It is a super-2 number, since 2×10145581² = 205865627655122, 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 (10145501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (1311300).

Almost surely, 2^10145581 is an apocalyptic number.

It is an amenable number.

10145581 is a deficient number, since it is larger than the sum of its proper divisors (344819).

10145581 is an equidigital number, since it uses as much as digits as its factorization.

10145581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 10145581 is about 3185.2128657281. The cubic root of 10145581 is about 216.4839187511.

Adding to 10145581 its reverse (18554101), we get a palindrome (28699682).

The spelling of 10145581 in words is "ten million, one hundred forty-five thousand, five hundred eighty-one".