10640145 has 16 divisors (see below), whose sum is σ = 17764992. Its totient is φ = 5427840.

The previous prime is 10640143. The next prime is 10640159. The reversal of 10640145 is 54104601.

It is not a de Polignac number, because 10640145 - 2¹ = 10640143 is a prime.

It is a super-2 number, since 2×10640145² = 226425371242050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10640143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15076 + ... + 15765.

It is an arithmetic number, because the mean of its divisors is an integer number (1110312).

Almost surely, 2^10640145 is an apocalyptic number.

10640145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10640145 is a deficient number, since it is larger than the sum of its proper divisors (7124847).

10640145 is a wasteful number, since it uses less digits than its factorization.

10640145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30872.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 10640145 is about 3261.9235122854. The cubic root of 10640145 is about 219.9458888958.

Adding to 10640145 its reverse (54104601), we get a palindrome (64744746).

The spelling of 10640145 in words is "ten million, six hundred forty thousand, one hundred forty-five".