1949159 has 4 divisors (see below), whose sum is σ = 1952880. Its totient is φ = 1945440.

The previous prime is 1949141. The next prime is 1949161. The reversal of 1949159 is 9519491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9519491 = 641 ⋅14851.

It is a cyclic number.

It is not a de Polignac number, because 1949159 - 2²⁰ = 900583 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 (1949179) 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, 914 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (488220).

2^1949159 is an apocalyptic number.

1949159 is a deficient number, since it is larger than the sum of its proper divisors (3721).

1949159 is an equidigital number, since it uses as much as digits as its factorization.

1949159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720.

The product of its digits is 14580, while the sum is 38.

The square root of 1949159 is about 1396.1228455978. The cubic root of 1949159 is about 124.9153346672.

The spelling of 1949159 in words is "one million, nine hundred forty-nine thousand, one hundred fifty-nine".