40155263149 has 2 divisors, whose sum is σ = 40155263150. Its totient is φ = 40155263148.

The previous prime is 40155263063. The next prime is 40155263189. The reversal of 40155263149 is 94136255104.

It is an a-pointer prime, because the next prime (40155263189) can be obtained adding 40155263149 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30169258249 + 9986004900 = 173693^2 + 99930^2 .

It is a cyclic number.

It is not a de Polignac number, because 40155263149 - 2¹⁹ = 40154738861 is a prime.

It is a super-2 number, since 2×40155263149² (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 (40155263189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20077631574 + 20077631575.

It is an arithmetic number, because the mean of its divisors is an integer number (20077631575).

Almost surely, 2^40155263149 is an apocalyptic number.

It is an amenable number.

40155263149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40155263149 is an equidigital number, since it uses as much as digits as its factorization.

40155263149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 40155263149 in words is "forty billion, one hundred fifty-five million, two hundred sixty-three thousand, one hundred forty-nine".