2157254 has 8 divisors (see below), whose sum is σ = 3530088. Its totient is φ = 980560.

The previous prime is 2157251. The next prime is 2157257. The reversal of 2157254 is 4527512.

It is an interprime number because it is at equal distance from previous prime (2157251) and next prime (2157257).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157251) 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, 49007 + ... + 49050.

It is an arithmetic number, because the mean of its divisors is an integer number (441261).

2^2157254 is an apocalyptic number.

2157254 is a deficient number, since it is larger than the sum of its proper divisors (1372834).

2157254 is a wasteful number, since it uses less digits than its factorization.

2157254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98070.

The product of its digits is 2800, while the sum is 26.

The square root of 2157254 is about 1468.7593403958. The cubic root of 2157254 is about 129.2112796754.

It can be divided in two parts, 21 and 57254, that added together give a palindrome (57275).

The spelling of 2157254 in words is "two million, one hundred fifty-seven thousand, two hundred fifty-four".