1154120045 has 8 divisors (see below), whose sum is σ = 1491478296. Its totient is φ = 852273216.

The previous prime is 1154120039. The next prime is 1154120053. The reversal of 1154120045 is 5400214511.

It can be written as a sum of positive squares in 4 ways, for example, as 91204 + 1154028841 = 302^2 + 33971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1154120045 - 2⁸ = 1154119789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1154120045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8877782 + ... + 8877911.

It is an arithmetic number, because the mean of its divisors is an integer number (186434787).

Almost surely, 2^1154120045 is an apocalyptic number.

It is an amenable number.

1154120045 is a deficient number, since it is larger than the sum of its proper divisors (337358251).

1154120045 is a wasteful number, since it uses less digits than its factorization.

1154120045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17755711.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1154120045 is about 33972.3423537442. The cubic root of 1154120045 is about 1048.9392295409.

Adding to 1154120045 its reverse (5400214511), we get a palindrome (6554334556).

The spelling of 1154120045 in words is "one billion, one hundred fifty-four million, one hundred twenty thousand, forty-five".