1161534 has 16 divisors (see below), whose sum is σ = 2534400. Its totient is φ = 351960.

The previous prime is 1161529. The next prime is 1161547. The reversal of 1161534 is 4351611.

It is a super-2 number, since 2×1161534² = 2698322466312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1161534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8734 + ... + 8865.

It is an arithmetic number, because the mean of its divisors is an integer number (158400).

2^1161534 is an apocalyptic number.

1161534 is an abundant number, since it is smaller than the sum of its proper divisors (1372866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161534 is a wasteful number, since it uses less digits than its factorization.

1161534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17615.

The product of its digits is 360, while the sum is 21.

The square root of 1161534 is about 1077.7448677679. The cubic root of 1161534 is about 105.1180531623.

The spelling of 1161534 in words is "one million, one hundred sixty-one thousand, five hundred thirty-four".