2154087 has 48 divisors (see below), whose sum is σ = 3840480. Its totient is φ = 1181952.

The previous prime is 2154077. The next prime is 2154109. The reversal of 2154087 is 7804512.

It is not a de Polignac number, because 2154087 - 2⁴ = 2154071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2154087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113364 + ... + 113382.

It is an arithmetic number, because the mean of its divisors is an integer number (80010).

2^2154087 is an apocalyptic number.

2154087 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2154087 is a deficient number, since it is larger than the sum of its proper divisors (1686393).

2154087 is a wasteful number, since it uses less digits than its factorization.

2154087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2154087 is about 1467.6808236125. The cubic root of 2154087 is about 129.1480183044.

Adding to 2154087 its reverse (7804512), we get a palindrome (9958599).

The spelling of 2154087 in words is "two million, one hundred fifty-four thousand, eighty-seven".