10161405 has 12 divisors (see below), whose sum is σ = 17613180. Its totient is φ = 5419392.

The previous prime is 10161379. The next prime is 10161407. The reversal of 10161405 is 50416101.

It can be written as a sum of positive squares in 2 ways, for example, as 7112889 + 3048516 = 2667^2 + 1746^2 .

It is not a de Polignac number, because 10161405 - 2⁶ = 10161341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10161407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112860 + ... + 112949.

It is an arithmetic number, because the mean of its divisors is an integer number (1467765).

Almost surely, 2^10161405 is an apocalyptic number.

10161405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10161405 is a deficient number, since it is larger than the sum of its proper divisors (7451775).

10161405 is a wasteful number, since it uses less digits than its factorization.

10161405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225820 (or 225817 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 10161405 is about 3187.6958763345. The cubic root of 10161405 is about 216.5964098309.

Adding to 10161405 its reverse (50416101), we get a palindrome (60577506).

The spelling of 10161405 in words is "ten million, one hundred sixty-one thousand, four hundred five".