1121145154 has 8 divisors (see below), whose sum is σ = 1681962048. Its totient is φ = 560491140.

The previous prime is 1121145127. The next prime is 1121145203. The reversal of 1121145154 is 4515411211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21742 + ... + 52105.

It is an arithmetic number, because the mean of its divisors is an integer number (210245256).

Almost surely, 2^1121145154 is an apocalyptic number.

1121145154 is a deficient number, since it is larger than the sum of its proper divisors (560816894).

1121145154 is an equidigital number, since it uses as much as digits as its factorization.

1121145154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81440.

The product of its digits is 800, while the sum is 25.

The square root of 1121145154 is about 33483.5057005685. The cubic root of 1121145154 is about 1038.8526406058.

Adding to 1121145154 its reverse (4515411211), we get a palindrome (5636556365).

It can be divided in two parts, 11211 and 45154, that added together give a palindrome (56365).

The spelling of 1121145154 in words is "one billion, one hundred twenty-one million, one hundred forty-five thousand, one hundred fifty-four".