165337049 has 4 divisors (see below), whose sum is σ = 166202880. Its totient is φ = 164471220.

The previous prime is 165337037. The next prime is 165337063. The reversal of 165337049 is 940733561.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 940733561 = 41 ⋅22944721.

It is a cyclic number.

It is not a de Polignac number, because 165337049 - 2⁸ = 165336793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165337009) 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, 432629 + ... + 433010.

It is an arithmetic number, because the mean of its divisors is an integer number (41550720).

Almost surely, 2^165337049 is an apocalyptic number.

It is an amenable number.

165337049 is a deficient number, since it is larger than the sum of its proper divisors (865831).

165337049 is an equidigital number, since it uses as much as digits as its factorization.

165337049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865830.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 165337049 is about 12858.3455001023. The cubic root of 165337049 is about 548.8538655932.

The spelling of 165337049 in words is "one hundred sixty-five million, three hundred thirty-seven thousand, forty-nine".