2131774 has 4 divisors (see below), whose sum is σ = 3197664. Its totient is φ = 1065886.

The previous prime is 2131771. The next prime is 2131793. The reversal of 2131774 is 4771312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532942 + ... + 532945.

It is an arithmetic number, because the mean of its divisors is an integer number (799416).

2^2131774 is an apocalyptic number.

2131774 is a deficient number, since it is larger than the sum of its proper divisors (1065890).

2131774 is a wasteful number, since it uses less digits than its factorization.

2131774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065889.

The product of its digits is 1176, while the sum is 25.

The square root of 2131774 is about 1460.0595878251. The cubic root of 2131774 is about 128.7005453069.

The spelling of 2131774 in words is "two million, one hundred thirty-one thousand, seven hundred seventy-four".