1161100534 has 16 divisors (see below), whose sum is σ = 1944169920. Its totient is φ = 515498760.

The previous prime is 1161100531. The next prime is 1161100541. The reversal of 1161100534 is 4350011611.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161100531) 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, 612744 + ... + 614635.

It is an arithmetic number, because the mean of its divisors is an integer number (121510620).

Almost surely, 2^1161100534 is an apocalyptic number.

1161100534 is a deficient number, since it is larger than the sum of its proper divisors (783069386).

1161100534 is a wasteful number, since it uses less digits than its factorization.

1161100534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227435.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1161100534 is about 34074.9252970568. The cubic root of 1161100534 is about 1051.0497540725.

The spelling of 1161100534 in words is "one billion, one hundred sixty-one million, one hundred thousand, five hundred thirty-four".