154491112 has 8 divisors (see below), whose sum is σ = 289670850. Its totient is φ = 77245552.

The previous prime is 154491083. The next prime is 154491119. The reversal of 154491112 is 211194451.

It can be written as a sum of positive squares in only one way, i.e., 96943716 + 57547396 = 9846^2 + 7586^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (154491119) by changing a digit.

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, 9655687 + ... + 9655702.

Almost surely, 2^154491112 is an apocalyptic number.

It is an amenable number.

154491112 is a deficient number, since it is larger than the sum of its proper divisors (135179738).

154491112 is a wasteful number, since it uses less digits than its factorization.

154491112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19311395 (or 19311391 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 154491112 is about 12429.4453617207. The cubic root of 154491112 is about 536.5800229622.

It can be divided in two parts, 15449 and 1112, that added together give a palindrome (16561).

The spelling of 154491112 in words is "one hundred fifty-four million, four hundred ninety-one thousand, one hundred twelve".