1942155 has 12 divisors (see below), whose sum is σ = 3366480. Its totient is φ = 1035792.

The previous prime is 1942153. The next prime is 1942163. The reversal of 1942155 is 5512491.

It is not a de Polignac number, because 1942155 - 2¹ = 1942153 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21535 + ... + 21624.

It is an arithmetic number, because the mean of its divisors is an integer number (280540).

2^1942155 is an apocalyptic number.

1942155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1942155 is a deficient number, since it is larger than the sum of its proper divisors (1424325).

1942155 is a wasteful number, since it uses less digits than its factorization.

1942155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43170 (or 43167 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 1942155 is about 1393.6122129201. The cubic root of 1942155 is about 124.7655338132.

The spelling of 1942155 in words is "one million, nine hundred forty-two thousand, one hundred fifty-five".