2155101534 has 24 divisors (see below), whose sum is σ = 4830401160. Its totient is φ = 693595728.

The previous prime is 2155101523. The next prime is 2155101589. The reversal of 2155101534 is 4351015512.

2155101534 is a `hidden beast` number, since 21 + 5 + 5 + 101 + 534 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2155101498 and 2155101507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2063752 + ... + 2064795.

It is an arithmetic number, because the mean of its divisors is an integer number (201266715).

Almost surely, 2^2155101534 is an apocalyptic number.

2155101534 is an abundant number, since it is smaller than the sum of its proper divisors (2675299626).

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

2155101534 is a wasteful number, since it uses less digits than its factorization.

2155101534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128584 (or 4128581 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 2155101534 is about 46423.0711392514. The cubic root of 2155101534 is about 1291.6829054210.

The spelling of 2155101534 in words is "two billion, one hundred fifty-five million, one hundred one thousand, five hundred thirty-four".