2177142 has 16 divisors (see below), whose sum is σ = 4750272. Its totient is φ = 659720.

The previous prime is 2177113. The next prime is 2177143. The reversal of 2177142 is 2417712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2177143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16428 + ... + 16559.

It is an arithmetic number, because the mean of its divisors is an integer number (296892).

2^2177142 is an apocalyptic number.

2177142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2177142 is an abundant number, since it is smaller than the sum of its proper divisors (2573130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2177142 is a wasteful number, since it uses less digits than its factorization.

2177142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33003.

The product of its digits is 784, while the sum is 24.

The square root of 2177142 is about 1475.5141476787. The cubic root of 2177142 is about 129.6071374289.

The spelling of 2177142 in words is "two million, one hundred seventy-seven thousand, one hundred forty-two".