2113554534 has 96 divisors (see below), whose sum is σ = 5351030496. Its totient is φ = 551577600.

The previous prime is 2113554497. The next prime is 2113554637. The reversal of 2113554534 is 4354553112.

It is a super-2 number, since 2×2113554534² = 8934225536383914312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2113554495 and 2113554504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 367884 + ... + 373584.

It is an arithmetic number, because the mean of its divisors is an integer number (55739901).

Almost surely, 2^2113554534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113554534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2675515248).

2113554534 is an abundant number, since it is smaller than the sum of its proper divisors (3237475962).

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

2113554534 is a wasteful number, since it uses less digits than its factorization.

2113554534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830 (or 5823 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 2113554534 is about 45973.4111634105. The cubic root of 2113554534 is about 1283.3284414873.

The spelling of 2113554534 in words is "two billion, one hundred thirteen million, five hundred fifty-four thousand, five hundred thirty-four".