10031145 has 32 divisors (see below), whose sum is σ = 17201280. Its totient is φ = 4976640.

The previous prime is 10031141. The next prime is 10031159. The reversal of 10031145 is 54113001.

It is not a de Polignac number, because 10031145 - 2² = 10031141 is a prime.

It is a super-2 number, since 2×10031145² = 201247740022050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10031141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17097 + ... + 17673.

It is an arithmetic number, because the mean of its divisors is an integer number (537540).

Almost surely, 2^10031145 is an apocalyptic number.

10031145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10031145 is a deficient number, since it is larger than the sum of its proper divisors (7170135).

10031145 is a wasteful number, since it uses less digits than its factorization.

10031145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 10031145 is about 3167.1982887088. The cubic root of 10031145 is about 215.6669034294. Note that the first 3 decimals are identical.

Adding to 10031145 its reverse (54113001), we get a palindrome (64144146).

The spelling of 10031145 in words is "ten million, thirty-one thousand, one hundred forty-five".