40137259 has 2 divisors, whose sum is σ = 40137260. Its totient is φ = 40137258.

The previous prime is 40137257. The next prime is 40137263. The reversal of 40137259 is 95273104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40137259 - 2¹ = 40137257 is a prime.

It is a super-2 number, since 2×40137259² = 3221999120066162, which contains 22 as substring.

Together with 40137257, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40137259.

It is not a weakly prime, because it can be changed into another prime (40137257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20068629 + 20068630.

It is an arithmetic number, because the mean of its divisors is an integer number (20068630).

Almost surely, 2^40137259 is an apocalyptic number.

40137259 is a deficient number, since it is larger than the sum of its proper divisors (1).

40137259 is an equidigital number, since it uses as much as digits as its factorization.

40137259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 40137259 is about 6335.3973040371. The cubic root of 40137259 is about 342.3859253893.

The spelling of 40137259 in words is "forty million, one hundred thirty-seven thousand, two hundred fifty-nine".