156049 has 4 divisors (see below), whose sum is σ = 161460. Its totient is φ = 150640.

The previous prime is 156041. The next prime is 156059. The reversal of 156049 is 940651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940651 = 37 ⋅25423.

It can be written as a sum of positive squares in 2 ways, for example, as 66049 + 90000 = 257^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 156049 - 2³ = 156041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662 + ... + 2719.

It is an arithmetic number, because the mean of its divisors is an integer number (40365).

2¹⁵⁶⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

156049 is a deficient number, since it is larger than the sum of its proper divisors (5411).

156049 is an equidigital number, since it uses as much as digits as its factorization.

156049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 156049 is about 395.0303785787. The cubic root of 156049 is about 53.8377618005.

The spelling of 156049 in words is "one hundred fifty-six thousand, forty-nine".