1141212154 has 4 divisors (see below), whose sum is σ = 1711818234. Its totient is φ = 570606076.

The previous prime is 1141212071. The next prime is 1141212169. The reversal of 1141212154 is 4512121411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4512121411 = 7 ⋅644588773.

It can be written as a sum of positive squares in only one way, i.e., 1113890625 + 27321529 = 33375^2 + 5227^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285303037 + ... + 285303040.

Almost surely, 2^1141212154 is an apocalyptic number.

1141212154 is a deficient number, since it is larger than the sum of its proper divisors (570606080).

1141212154 is an equidigital number, since it uses as much as digits as its factorization.

1141212154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570606079.

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

The square root of 1141212154 is about 33781.8317146954. The cubic root of 1141212154 is about 1045.0140498557.

Adding to 1141212154 its reverse (4512121411), we get a palindrome (5653333565).

The spelling of 1141212154 in words is "one billion, one hundred forty-one million, two hundred twelve thousand, one hundred fifty-four".