1141421445 has 12 divisors (see below), whose sum is σ = 1978463916. Its totient is φ = 608758080.

The previous prime is 1141421443. The next prime is 1141421459. The reversal of 1141421445 is 5441241411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 186240609 + 955180836 = 13647^2 + 30906^2 .

It is not a de Polignac number, because 1141421445 - 2¹ = 1141421443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141421443) 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, 12682416 + ... + 12682505.

It is an arithmetic number, because the mean of its divisors is an integer number (164871993).

Almost surely, 2^1141421445 is an apocalyptic number.

1141421445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1141421445 is a deficient number, since it is larger than the sum of its proper divisors (837042471).

1141421445 is a wasteful number, since it uses less digits than its factorization.

1141421445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25364932 (or 25364929 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 1141421445 is about 33784.9292584726. The cubic root of 1141421445 is about 1045.0779289122.

Adding to 1141421445 its reverse (5441241411), we get a palindrome (6582662856).

The spelling of 1141421445 in words is "one billion, one hundred forty-one million, four hundred twenty-one thousand, four hundred forty-five".