2113554434 has 4 divisors (see below), whose sum is σ = 3170331654. Its totient is φ = 1056777216.

The previous prime is 2113554409. The next prime is 2113554439. The reversal of 2113554434 is 4344553112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1894425625 + 219128809 = 43525^2 + 14803^2 .

It is a super-2 number, since 2×2113554434² = 8934224690962120712, 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 2113554434.

It is not an unprimeable number, because it can be changed into a prime (2113554439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528388607 + ... + 528388610.

Almost surely, 2^2113554434 is an apocalyptic number.

2113554434 is a deficient number, since it is larger than the sum of its proper divisors (1056777220).

2113554434 is a wasteful number, since it uses less digits than its factorization.

2113554434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056777219.

The product of its digits is 28800, while the sum is 32.

The square root of 2113554434 is about 45973.4100758254. The cubic root of 2113554434 is about 1283.3284212477.

The spelling of 2113554434 in words is "two billion, one hundred thirteen million, five hundred fifty-four thousand, four hundred thirty-four".