2731138 has 8 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 1360260.

The previous prime is 2731129. The next prime is 2731147. The reversal of 2731138 is 8311372.

It is an interprime number because it is at equal distance from previous prime (2731129) and next prime (2731147).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2731138² = 14918229550088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (514080).

2^2731138 is an apocalyptic number.

2731138 is a deficient number, since it is larger than the sum of its proper divisors (1381502).

2731138 is a wasteful number, since it uses less digits than its factorization.

2731138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312.

The product of its digits is 1008, while the sum is 25.

The square root of 2731138 is about 1652.6155027713. The cubic root of 2731138 is about 139.7809158403.

The spelling of 2731138 in words is "two million, seven hundred thirty-one thousand, one hundred thirty-eight".