1154013540 has 24 divisors (see below), whose sum is σ = 3231238080. Its totient is φ = 307736928.

The previous prime is 1154013479. The next prime is 1154013547. The reversal of 1154013540 is 453104511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1154013540.

It is not an unprimeable number, because it can be changed into a prime (1154013547) 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 in 7 ways as a sum of consecutive naturals, for example, 9616720 + ... + 9616839.

It is an arithmetic number, because the mean of its divisors is an integer number (134634920).

Almost surely, 2^1154013540 is an apocalyptic number.

1154013540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154013540 is an abundant number, since it is smaller than the sum of its proper divisors (2077224540).

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

1154013540 is a wasteful number, since it uses less digits than its factorization.

1154013540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19233571 (or 19233569 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1154013540 is about 33970.7747924595. The cubic root of 1154013540 is about 1048.9069623287.

The spelling of 1154013540 in words is "one billion, one hundred fifty-four million, thirteen thousand, five hundred forty".