1131277054 has 4 divisors (see below), whose sum is σ = 1696915584. Its totient is φ = 565638526.

The previous prime is 1131277003. The next prime is 1131277073. The reversal of 1131277054 is 4507721311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4507721311 = 73 ⋅61749607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282819262 + ... + 282819265.

It is an arithmetic number, because the mean of its divisors is an integer number (424228896).

Almost surely, 2^1131277054 is an apocalyptic number.

1131277054 is a deficient number, since it is larger than the sum of its proper divisors (565638530).

1131277054 is an equidigital number, since it uses as much as digits as its factorization.

1131277054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565638529.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1131277054 is about 33634.4622968764. The cubic root of 1131277054 is about 1041.9726655345.

Adding to 1131277054 its reverse (4507721311), we get a palindrome (5638998365).

The spelling of 1131277054 in words is "one billion, one hundred thirty-one million, two hundred seventy-seven thousand, fifty-four".