40082137 has 4 divisors (see below), whose sum is σ = 41165476. Its totient is φ = 38998800.

The previous prime is 40082131. The next prime is 40082167. The reversal of 40082137 is 73128004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35772361 + 4309776 = 5981^2 + 2076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40082137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40082131) 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, 541614 + ... + 541687.

It is an arithmetic number, because the mean of its divisors is an integer number (10291369).

Almost surely, 2^40082137 is an apocalyptic number.

It is an amenable number.

40082137 is a deficient number, since it is larger than the sum of its proper divisors (1083339).

40082137 is a wasteful number, since it uses less digits than its factorization.

40082137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083338.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40082137 is about 6331.0454902804. The cubic root of 40082137 is about 342.2291164483.

The spelling of 40082137 in words is "forty million, eighty-two thousand, one hundred thirty-seven".