40251319 has 2 divisors, whose sum is σ = 40251320. Its totient is φ = 40251318.

The previous prime is 40251313. The next prime is 40251353. The reversal of 40251319 is 91315204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40251319 - 2¹⁹ = 39727031 is a prime.

It is a super-2 number, since 2×40251319² = 3240337362479522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40251293 and 40251302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40251313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20125659 + 20125660.

It is an arithmetic number, because the mean of its divisors is an integer number (20125660).

Almost surely, 2^40251319 is an apocalyptic number.

40251319 is a deficient number, since it is larger than the sum of its proper divisors (1).

40251319 is an equidigital number, since it uses as much as digits as its factorization.

40251319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 40251319 is about 6344.3927211357. The cubic root of 40251319 is about 342.7099435661.

The spelling of 40251319 in words is "forty million, two hundred fifty-one thousand, three hundred nineteen".