2231542 has 4 divisors (see below), whose sum is σ = 3347316. Its totient is φ = 1115770.

The previous prime is 2231533. The next prime is 2231587. The reversal of 2231542 is 2451322.

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

It is a super-3 number, since 3×2231542³ = 33337762638923016264, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557884 + ... + 557887.

It is an arithmetic number, because the mean of its divisors is an integer number (836829).

2^2231542 is an apocalyptic number.

2231542 is a deficient number, since it is larger than the sum of its proper divisors (1115774).

2231542 is a wasteful number, since it uses less digits than its factorization.

2231542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115773.

The product of its digits is 480, while the sum is 19.

The square root of 2231542 is about 1493.8346628727. The cubic root of 2231542 is about 130.6777620848.

Adding to 2231542 its reverse (2451322), we get a palindrome (4682864).

The spelling of 2231542 in words is "two million, two hundred thirty-one thousand, five hundred forty-two".