1154214534 has 64 divisors (see below), whose sum is σ = 2615493888. Its totient is φ = 336499200.

The previous prime is 1154214511. The next prime is 1154214563. The reversal of 1154214534 is 4354124511.

It is a super-2 number, since 2×1154214534² = 2664422380993674312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194617 + ... + 200459.

It is an arithmetic number, because the mean of its divisors is an integer number (40867092).

Almost surely, 2^1154214534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1154214534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307746944).

1154214534 is an abundant number, since it is smaller than the sum of its proper divisors (1461279354).

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

1154214534 is a wasteful number, since it uses less digits than its factorization.

1154214534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973.

The product of its digits is 9600, while the sum is 30.

The square root of 1154214534 is about 33973.7330006580. The cubic root of 1154214534 is about 1048.9678546724.

The spelling of 1154214534 in words is "one billion, one hundred fifty-four million, two hundred fourteen thousand, five hundred thirty-four".