2151055 has 8 divisors (see below), whose sum is σ = 2592144. Its totient is φ = 1713600.

The previous prime is 2151031. The next prime is 2151073. The reversal of 2151055 is 5501512.

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

It is not a de Polignac number, because 2151055 - 2⁹ = 2150543 is a prime.

It is a super-2 number, since 2×2151055² = 9254075226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640 + ... + 2170.

It is an arithmetic number, because the mean of its divisors is an integer number (324018).

2^2151055 is an apocalyptic number.

2151055 is a deficient number, since it is larger than the sum of its proper divisors (441089).

2151055 is a wasteful number, since it uses less digits than its factorization.

2151055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 2151055 is about 1466.6475377540. The cubic root of 2151055 is about 129.0873954578.

Adding to 2151055 its reverse (5501512), we get a palindrome (7652567).

It can be divided in two parts, 21 and 51055, that added together give a square (51076 = 226²).

The spelling of 2151055 in words is "two million, one hundred fifty-one thousand, fifty-five".