1154720541 has 16 divisors (see below), whose sum is σ = 1660248576. Its totient is φ = 709659456.

The previous prime is 1154720527. The next prime is 1154720551. The reversal of 1154720541 is 1450274511.

It is not a de Polignac number, because 1154720541 - 2⁵ = 1154720509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1154720499 and 1154720508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154720551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10996 + ... + 49298.

It is an arithmetic number, because the mean of its divisors is an integer number (103765536).

Almost surely, 2^1154720541 is an apocalyptic number.

It is an amenable number.

1154720541 is a deficient number, since it is larger than the sum of its proper divisors (505528035).

1154720541 is a wasteful number, since it uses less digits than its factorization.

1154720541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39092.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 1154720541 is about 33981.1792173256. The cubic root of 1154720541 is about 1049.1211212490.

The spelling of 1154720541 in words is "one billion, one hundred fifty-four million, seven hundred twenty thousand, five hundred forty-one".