2142572 has 12 divisors (see below), whose sum is σ = 3769920. Its totient is φ = 1065456.

The previous prime is 2142557. The next prime is 2142577. The reversal of 2142572 is 2752412.

It is a happy number.

It is a super-2 number, since 2×2142572² = 9181229550368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2142577) 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, 572 + ... + 2147.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

2^2142572 is an apocalyptic number.

It is an amenable number.

2142572 is a deficient number, since it is larger than the sum of its proper divisors (1627348).

2142572 is a wasteful number, since it uses less digits than its factorization.

2142572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920 (or 2918 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 2142572 is about 1463.7527113553. The cubic root of 2142572 is about 128.9174802252.

Adding to 2142572 its reverse (2752412), we get a palindrome (4894984).

The spelling of 2142572 in words is "two million, one hundred forty-two thousand, five hundred seventy-two".