1541121142 has 16 divisors (see below), whose sum is σ = 2522745792. Its totient is φ = 700256520.

The previous prime is 1541121089. The next prime is 1541121157. The reversal of 1541121142 is 2411211451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58513 + ... + 80659.

It is an arithmetic number, because the mean of its divisors is an integer number (157671612).

Almost surely, 2^1541121142 is an apocalyptic number.

1541121142 is a deficient number, since it is larger than the sum of its proper divisors (981624650).

1541121142 is a wasteful number, since it uses less digits than its factorization.

1541121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25323.

The product of its digits is 320, while the sum is 22.

The square root of 1541121142 is about 39257.1158135694. The cubic root of 1541121142 is about 1155.0805193642.

Adding to 1541121142 its reverse (2411211451), we get a palindrome (3952332593).

The spelling of 1541121142 in words is "one billion, five hundred forty-one million, one hundred twenty-one thousand, one hundred forty-two".