1154354013 has 12 divisors (see below), whose sum is σ = 1667695068. Its totient is φ = 769433280.

The previous prime is 1154353979. The next prime is 1154354017. The reversal of 1154354013 is 3104534511.

It is a happy number.

1154354013 is a `hidden beast` number, since 115 + 4 + 3 + 540 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 850130649 + 304223364 = 29157^2 + 17442^2 .

It is not a de Polignac number, because 1154354013 - 2⁸ = 1154353757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154354017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91081 + ... + 102977.

It is an arithmetic number, because the mean of its divisors is an integer number (138974589).

Almost surely, 2^1154354013 is an apocalyptic number.

It is an amenable number.

1154354013 is a deficient number, since it is larger than the sum of its proper divisors (513341055).

1154354013 is a wasteful number, since it uses less digits than its factorization.

1154354013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22684 (or 22681 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1154354013 is about 33975.7856862796. The cubic root of 1154354013 is about 1049.0101065213.

Adding to 1154354013 its reverse (3104534511), we get a palindrome (4258888524).

It can be divided in two parts, 11543 and 54013, that added together give a palindrome (65556).

The spelling of 1154354013 in words is "one billion, one hundred fifty-four million, three hundred fifty-four thousand, thirteen".