1954159 has 2 divisors, whose sum is σ = 1954160. Its totient is φ = 1954158.

The previous prime is 1954157. The next prime is 1954177. The reversal of 1954159 is 9514591.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1954159 - 2¹ = 1954157 is a prime.

Together with 1954157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977079 + 977080.

It is an arithmetic number, because the mean of its divisors is an integer number (977080).

2^1954159 is an apocalyptic number.

1954159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954159 is an equidigital number, since it uses as much as digits as its factorization.

1954159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 34.

The square root of 1954159 is about 1397.9123720749. The cubic root of 1954159 is about 125.0220547751.

It can be divided in two parts, 19541 and 59, that added together give a square (19600 = 140²).

The spelling of 1954159 in words is "one million, nine hundred fifty-four thousand, one hundred fifty-nine".