40137019 has 4 divisors (see below), whose sum is σ = 43224496. Its totient is φ = 37049544.

The previous prime is 40136989. The next prime is 40137049. The reversal of 40137019 is 91073104.

40137019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (40136989) and next prime (40137049).

It is a cyclic number.

It is not a de Polignac number, because 40137019 - 2¹¹ = 40134971 is a prime.

It is a super-2 number, since 2×40137019² = 3221960588412722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40136984 and 40137002.

It is not an unprimeable number, because it can be changed into a prime (40137049) 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 in 3 ways as a sum of consecutive naturals, for example, 1543719 + ... + 1543744.

It is an arithmetic number, because the mean of its divisors is an integer number (10806124).

Almost surely, 2^40137019 is an apocalyptic number.

40137019 is a deficient number, since it is larger than the sum of its proper divisors (3087477).

40137019 is a wasteful number, since it uses less digits than its factorization.

40137019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087476.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 40137019 is about 6335.3783628131. The cubic root of 40137019 is about 342.3852429579.

The spelling of 40137019 in words is "forty million, one hundred thirty-seven thousand, nineteen".