2155411534 has 8 divisors (see below), whose sum is σ = 3234813120. Its totient is φ = 1077140496.

The previous prime is 2155411477. The next prime is 2155411537. The reversal of 2155411534 is 4351145512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2155411496 and 2155411505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155411537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277854 + ... + 285505.

It is an arithmetic number, because the mean of its divisors is an integer number (404351640).

Almost surely, 2^2155411534 is an apocalyptic number.

2155411534 is a deficient number, since it is larger than the sum of its proper divisors (1079401586).

2155411534 is a wasteful number, since it uses less digits than its factorization.

2155411534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565274.

The product of its digits is 12000, while the sum is 31.

The square root of 2155411534 is about 46426.4098762762. The cubic root of 2155411534 is about 1291.7448363782.

The spelling of 2155411534 in words is "two billion, one hundred fifty-five million, four hundred eleven thousand, five hundred thirty-four".