1941154442 has 4 divisors (see below), whose sum is σ = 2911731666. Its totient is φ = 970577220.

The previous prime is 1941154441. The next prime is 1941154447. The reversal of 1941154442 is 2444511491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2444511491 = 18917 ⋅129223.

It can be written as a sum of positive squares in only one way, i.e., 1340365321 + 600789121 = 36611^2 + 24511^2 .

It is not an unprimeable number, because it can be changed into a prime (1941154441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485288609 + ... + 485288612.

Almost surely, 2^1941154442 is an apocalyptic number.

1941154442 is a deficient number, since it is larger than the sum of its proper divisors (970577224).

1941154442 is an equidigital number, since it uses as much as digits as its factorization.

1941154442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970577223.

The product of its digits is 23040, while the sum is 35.

The square root of 1941154442 is about 44058.5342697644. The cubic root of 1941154442 is about 1247.4410459380.

The spelling of 1941154442 in words is "one billion, nine hundred forty-one million, one hundred fifty-four thousand, four hundred forty-two".