40126539 has 8 divisors (see below), whose sum is σ = 53923840. Its totient is φ = 26540136.

The previous prime is 40126523. The next prime is 40126547. The reversal of 40126539 is 93562104.

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

It is not a de Polignac number, because 40126539 - 2⁴ = 40126523 is a prime.

It is a super-2 number, since 2×40126539² = 3220278264237042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40126739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52279 + ... + 53040.

It is an arithmetic number, because the mean of its divisors is an integer number (6740480).

Almost surely, 2^40126539 is an apocalyptic number.

40126539 is a deficient number, since it is larger than the sum of its proper divisors (13797301).

40126539 is a wasteful number, since it uses less digits than its factorization.

40126539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105449.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 40126539 is about 6334.5512074653. The cubic root of 40126539 is about 342.3554407970.

The spelling of 40126539 in words is "forty million, one hundred twenty-six thousand, five hundred thirty-nine".