1161455126 has 16 divisors (see below), whose sum is σ = 1877093568. Its totient is φ = 535800000.

The previous prime is 1161455111. The next prime is 1161455129. The reversal of 1161455126 is 6215541611.

It is a junction number, because it is equal to n+sod(n) for n = 1161455092 and 1161455101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161455129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51626 + ... + 70626.

It is an arithmetic number, because the mean of its divisors is an integer number (117318348).

Almost surely, 2^1161455126 is an apocalyptic number.

1161455126 is a deficient number, since it is larger than the sum of its proper divisors (715638442).

1161455126 is a wasteful number, since it uses less digits than its factorization.

1161455126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21367.

The product of its digits is 7200, while the sum is 32.

The square root of 1161455126 is about 34080.1280220600. The cubic root of 1161455126 is about 1051.1567376025.

Adding to 1161455126 its reverse (6215541611), we get a palindrome (7376996737).

It can be divided in two parts, 1161 and 455126, that multiplied together give a triangular number (528401286 = T₃₂₅₀₈).

The spelling of 1161455126 in words is "one billion, one hundred sixty-one million, four hundred fifty-five thousand, one hundred twenty-six".