2142554 has 8 divisors (see below), whose sum is σ = 3383040. Its totient is φ = 1014876.

The previous prime is 2142551. The next prime is 2142557. The reversal of 2142554 is 4552412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2142551) and next prime (2142557).

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2142551) 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, 28154 + ... + 28229.

It is an arithmetic number, because the mean of its divisors is an integer number (422880).

2^2142554 is an apocalyptic number.

2142554 is a deficient number, since it is larger than the sum of its proper divisors (1240486).

2142554 is a wasteful number, since it uses less digits than its factorization.

2142554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56404.

The product of its digits is 1600, while the sum is 23.

The square root of 2142554 is about 1463.7465627628. The cubic root of 2142554 is about 128.9171192072.

Adding to 2142554 its reverse (4552412), we get a palindrome (6694966).

The spelling of 2142554 in words is "two million, one hundred forty-two thousand, five hundred fifty-four".