1749161 has 4 divisors (see below), whose sum is σ = 1754112. Its totient is φ = 1744212.

The previous prime is 1749157. The next prime is 1749179. The reversal of 1749161 is 1619471.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1749161 - 2² = 1749157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1749151) 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, 1901 + ... + 2666.

It is an arithmetic number, because the mean of its divisors is an integer number (438528).

2^1749161 is an apocalyptic number.

It is an amenable number.

1749161 is a deficient number, since it is larger than the sum of its proper divisors (4951).

1749161 is an equidigital number, since it uses as much as digits as its factorization.

1749161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950.

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

The square root of 1749161 is about 1322.5585053222. The cubic root of 1749161 is about 120.4878519459.

The spelling of 1749161 in words is "one million, seven hundred forty-nine thousand, one hundred sixty-one".