1141554511 has 4 divisors (see below), whose sum is σ = 1147861624. Its totient is φ = 1135247400.

The previous prime is 1141554499. The next prime is 1141554553. The reversal of 1141554511 is 1154551411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1141554511 - 2¹³ = 1141546319 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 1141554511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141554311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153285 + ... + 3153646.

It is an arithmetic number, because the mean of its divisors is an integer number (286965406).

Almost surely, 2^1141554511 is an apocalyptic number.

1141554511 is a deficient number, since it is larger than the sum of its proper divisors (6307113).

1141554511 is an equidigital number, since it uses as much as digits as its factorization.

1141554511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307112.

The product of its digits is 2000, while the sum is 28.

The square root of 1141554511 is about 33786.8985111093. The cubic root of 1141554511 is about 1045.1185387841.

The spelling of 1141554511 in words is "one billion, one hundred forty-one million, five hundred fifty-four thousand, five hundred eleven".