749161 has 6 divisors (see below), whose sum is σ = 871530. Its totient is φ = 642096.

The previous prime is 749153. The next prime is 749167. The reversal of 749161 is 161947.

It can be written as a sum of positive squares in only one way, i.e., 670761 + 78400 = 819^2 + 280^2 .

It is not a de Polignac number, because 749161 - 2³ = 749153 is a prime.

It is a super-2 number, since 2×749161² = 1122484407842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7596 + ... + 7693.

It is an arithmetic number, because the mean of its divisors is an integer number (145255).

2⁷⁴⁹¹⁶¹ is an apocalyptic number.

It is an amenable number.

749161 is a deficient number, since it is larger than the sum of its proper divisors (122369).

749161 is a wasteful number, since it uses less digits than its factorization.

749161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15303 (or 15296 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 749161 is about 865.5408713631. The cubic root of 749161 is about 90.8221377966.

The spelling of 749161 in words is "seven hundred forty-nine thousand, one hundred sixty-one".