10161749 has 4 divisors (see below), whose sum is σ = 10943436. Its totient is φ = 9380064.

The previous prime is 10161737. The next prime is 10161757. The reversal of 10161749 is 94716101.

10161749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5793649 + 4368100 = 2407^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 10161749 - 2⁸ = 10161493 is a prime.

It is a super-2 number, since 2×10161749² = 206522285478002, 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 (10161709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390824 + ... + 390849.

It is an arithmetic number, because the mean of its divisors is an integer number (2735859).

Almost surely, 2^10161749 is an apocalyptic number.

It is an amenable number.

10161749 is a deficient number, since it is larger than the sum of its proper divisors (781687).

10161749 is an equidigital number, since it uses as much as digits as its factorization.

10161749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781686.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 10161749 is about 3187.7498333464. The cubic root of 10161749 is about 216.5988539918.

The spelling of 10161749 in words is "ten million, one hundred sixty-one thousand, seven hundred forty-nine".