2542155 has 64 divisors (see below), whose sum is σ = 5308416. Its totient is φ = 1008000.

The previous prime is 2542151. The next prime is 2542187. The reversal of 2542155 is 5512452.

2542155 = T₉₈ + T₉₉ + ... + T₂₅₂.

It is a happy number.

2542155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2542155 - 2² = 2542151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2542151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35770 + ... + 35840.

It is an arithmetic number, because the mean of its divisors is an integer number (82944).

2^2542155 is an apocalyptic number.

2542155 is the 1302-nd pentagonal number.

2542155 is an abundant number, since it is smaller than the sum of its proper divisors (2766261).

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

2542155 is a wasteful number, since it uses less digits than its factorization.

2542155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128.

The product of its digits is 2000, while the sum is 24.

The square root of 2542155 is about 1594.4136853402. The cubic root of 2542155 is about 136.4794747010.

The spelling of 2542155 in words is "two million, five hundred forty-two thousand, one hundred fifty-five".