2154313142 has 4 divisors (see below), whose sum is σ = 3231469716. Its totient is φ = 1077156570.

The previous prime is 2154313141. The next prime is 2154313153. The reversal of 2154313142 is 2413134512.

It is a happy number.

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

It is a super-2 number, since 2×2154313142² = 9282130227587824328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154313141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538578284 + ... + 538578287.

It is an arithmetic number, because the mean of its divisors is an integer number (807867429).

Almost surely, 2^2154313142 is an apocalyptic number.

2154313142 is a deficient number, since it is larger than the sum of its proper divisors (1077156574).

2154313142 is a wasteful number, since it uses less digits than its factorization.

2154313142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077156573.

The product of its digits is 2880, while the sum is 26.

The square root of 2154313142 is about 46414.5789811779. The cubic root of 2154313142 is about 1291.5253758478.

Adding to 2154313142 its reverse (2413134512), we get a palindrome (4567447654).

The spelling of 2154313142 in words is "two billion, one hundred fifty-four million, three hundred thirteen thousand, one hundred forty-two".