1115551254 has 32 divisors (see below), whose sum is σ = 2377424736. Its totient is φ = 347742720.

The previous prime is 1115551223. The next prime is 1115551259. The reversal of 1115551254 is 4521555111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115551259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18817 + ... + 50844.

It is an arithmetic number, because the mean of its divisors is an integer number (74294523).

Almost surely, 2^1115551254 is an apocalyptic number.

1115551254 is an abundant number, since it is smaller than the sum of its proper divisors (1261873482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115551254 is a wasteful number, since it uses less digits than its factorization.

1115551254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69840.

The product of its digits is 5000, while the sum is 30.

The square root of 1115551254 is about 33399.8690715997. The cubic root of 1115551254 is about 1037.1219905915.

The spelling of 1115551254 in words is "one billion, one hundred fifteen million, five hundred fifty-one thousand, two hundred fifty-four".