2154903 has 32 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 1236480.

The previous prime is 2154899. The next prime is 2154907. The reversal of 2154903 is 3094512.

It is an interprime number because it is at equal distance from previous prime (2154899) and next prime (2154907).

It is not a de Polignac number, because 2154903 - 2² = 2154899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45826 + ... + 45872.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^2154903 is an apocalyptic number.

2154903 is a deficient number, since it is larger than the sum of its proper divisors (1162857).

2154903 is a wasteful number, since it uses less digits than its factorization.

2154903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2154903 is about 1467.9587868874. The cubic root of 2154903 is about 129.1643239718.

The spelling of 2154903 in words is "two million, one hundred fifty-four thousand, nine hundred three".