1155234377 has 4 divisors (see below), whose sum is σ = 1260255696. Its totient is φ = 1050213060.

The previous prime is 1155234361. The next prime is 1155234383. The reversal of 1155234377 is 7734325511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7734325511 = 11 ⋅703120501.

It is a cyclic number.

It is not a de Polignac number, because 1155234377 - 2⁴ = 1155234361 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 1155234377.

It is not an unprimeable number, because it can be changed into a prime (1155234307) 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, 52510643 + ... + 52510664.

It is an arithmetic number, because the mean of its divisors is an integer number (315063924).

Almost surely, 2^1155234377 is an apocalyptic number.

It is an amenable number.

1155234377 is a deficient number, since it is larger than the sum of its proper divisors (105021319).

1155234377 is a wasteful number, since it uses less digits than its factorization.

1155234377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105021318.

The product of its digits is 88200, while the sum is 38.

The square root of 1155234377 is about 33988.7389733718. The cubic root of 1155234377 is about 1049.2767133715.

Adding to 1155234377 its reverse (7734325511), we get a palindrome (8889559888).

It can be divided in two parts, 1155 and 234377, that added together give a palindrome (235532).

The spelling of 1155234377 in words is "one billion, one hundred fifty-five million, two hundred thirty-four thousand, three hundred seventy-seven".