40619143 has 2 divisors, whose sum is σ = 40619144. Its totient is φ = 40619142.

The previous prime is 40619119. The next prime is 40619149. The reversal of 40619143 is 34191604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40619143 - 2⁹ = 40618631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40619149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20309571 + 20309572.

It is an arithmetic number, because the mean of its divisors is an integer number (20309572).

Almost surely, 2^40619143 is an apocalyptic number.

40619143 is a deficient number, since it is larger than the sum of its proper divisors (1).

40619143 is an equidigital number, since it uses as much as digits as its factorization.

40619143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40619143 is about 6373.3149145480. The cubic root of 40619143 is about 343.7506954036.

The spelling of 40619143 in words is "forty million, six hundred nineteen thousand, one hundred forty-three".