40147320149 has 2 divisors, whose sum is σ = 40147320150. Its totient is φ = 40147320148.

The previous prime is 40147320077. The next prime is 40147320193. The reversal of 40147320149 is 94102374104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33418399249 + 6728920900 = 182807^2 + 82030^2 .

It is a cyclic number.

It is not a de Polignac number, because 40147320149 - 2⁸ = 40147319893 is a prime.

It is a super-2 number, since 2×40147320149² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40147320349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20073660074 + 20073660075.

It is an arithmetic number, because the mean of its divisors is an integer number (20073660075).

Almost surely, 2^40147320149 is an apocalyptic number.

It is an amenable number.

40147320149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40147320149 is an equidigital number, since it uses as much as digits as its factorization.

40147320149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 40147320149 in words is "forty billion, one hundred forty-seven million, three hundred twenty thousand, one hundred forty-nine".