10161645 has 48 divisors (see below), whose sum is σ = 18525696. Its totient is φ = 4723200.

The previous prime is 10161611. The next prime is 10161647. The reversal of 10161645 is 54616101.

It is not a de Polignac number, because 10161645 - 2⁹ = 10161133 is a prime.

It is a super-3 number, since 3×10161645³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10161647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247825 + ... + 247865.

It is an arithmetic number, because the mean of its divisors is an integer number (385952).

Almost surely, 2^10161645 is an apocalyptic number.

10161645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10161645 is a deficient number, since it is larger than the sum of its proper divisors (8364051).

10161645 is a wasteful number, since it uses less digits than its factorization.

10161645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 10161645 is about 3187.7335208577. The cubic root of 10161645 is about 216.5981150652.

Adding to 10161645 its reverse (54616101), we get a palindrome (64777746).

The spelling of 10161645 in words is "ten million, one hundred sixty-one thousand, six hundred forty-five".