2157154 has 8 divisors (see below), whose sum is σ = 3253248. Its totient is φ = 1072740.

The previous prime is 2157151. The next prime is 2157157. The reversal of 2157154 is 4517512.

It is an interprime number because it is at equal distance from previous prime (2157151) and next prime (2157157).

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

It is not an unprimeable number, because it can be changed into a prime (2157151) 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, 2442 + ... + 3205.

It is an arithmetic number, because the mean of its divisors is an integer number (406656).

2^2157154 is an apocalyptic number.

2157154 is a deficient number, since it is larger than the sum of its proper divisors (1096094).

2157154 is a wasteful number, since it uses less digits than its factorization.

2157154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840.

The product of its digits is 1400, while the sum is 25.

The square root of 2157154 is about 1468.7252976646. The cubic root of 2157154 is about 129.2092831052.

It can be divided in two parts, 21 and 57154, that added together give a palindrome (57175).

The spelling of 2157154 in words is "two million, one hundred fifty-seven thousand, one hundred fifty-four".