1125340655 has 4 divisors (see below), whose sum is σ = 1350408792. Its totient is φ = 900272520.

The previous prime is 1125340649. The next prime is 1125340661. The reversal of 1125340655 is 5560435211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5560435211 = 41 ⋅135620371.

It is an interprime number because it is at equal distance from previous prime (1125340649) and next prime (1125340661).

It is not a de Polignac number, because 1125340655 - 2⁶ = 1125340591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112534061 + ... + 112534070.

It is an arithmetic number, because the mean of its divisors is an integer number (337602198).

Almost surely, 2^1125340655 is an apocalyptic number.

1125340655 is a deficient number, since it is larger than the sum of its proper divisors (225068137).

1125340655 is an equidigital number, since it uses as much as digits as its factorization.

1125340655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225068136.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1125340655 is about 33546.0974630433. The cubic root of 1125340655 is about 1040.1468773697.

Adding to 1125340655 its reverse (5560435211), we get a palindrome (6685775866).

The spelling of 1125340655 in words is "one billion, one hundred twenty-five million, three hundred forty thousand, six hundred fifty-five".