1125544154 has 16 divisors (see below), whose sum is σ = 2031057600. Its totient is φ = 456987744.

The previous prime is 1125544081. The next prime is 1125544157. The reversal of 1125544154 is 4514455211.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125544154.

It is not an unprimeable number, because it can be changed into a prime (1125544157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115419 + ... + 2115950.

It is an arithmetic number, because the mean of its divisors is an integer number (126941100).

Almost surely, 2^1125544154 is an apocalyptic number.

1125544154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1125544154 is a deficient number, since it is larger than the sum of its proper divisors (905513446).

1125544154 is a wasteful number, since it uses less digits than its factorization.

1125544154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231397.

The product of its digits is 16000, while the sum is 32.

The square root of 1125544154 is about 33549.1304507285. The cubic root of 1125544154 is about 1040.2095713018.

Adding to 1125544154 its reverse (4514455211), we get a palindrome (5639999365).

The spelling of 1125544154 in words is "one billion, one hundred twenty-five million, five hundred forty-four thousand, one hundred fifty-four".