2155602 has 8 divisors (see below), whose sum is σ = 4311216. Its totient is φ = 718532.

The previous prime is 2155597. The next prime is 2155603. The reversal of 2155602 is 2065512.

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

2155602 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2155603) 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, 179628 + ... + 179639.

It is an arithmetic number, because the mean of its divisors is an integer number (538902).

2^2155602 is an apocalyptic number.

2155602 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2155602 is a wasteful number, since it uses less digits than its factorization.

2155602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359272.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2155602 is about 1468.1968532864. The cubic root of 2155602 is about 129.1782884213.

The spelling of 2155602 in words is "two million, one hundred fifty-five thousand, six hundred two".