149214037549 has 2 divisors, whose sum is σ = 149214037550. Its totient is φ = 149214037548.

The previous prime is 149214037541. The next prime is 149214037591. The reversal of 149214037549 is 945730412941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82301281924 + 66912755625 = 286882^2 + 258675^2 .

It is an emirp because it is prime and its reverse (945730412941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149214037549 - 2³ = 149214037541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149214037541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74607018774 + 74607018775.

It is an arithmetic number, because the mean of its divisors is an integer number (74607018775).

Almost surely, 2^149214037549 is an apocalyptic number.

It is an amenable number.

149214037549 is a deficient number, since it is larger than the sum of its proper divisors (1).

149214037549 is an equidigital number, since it uses as much as digits as its factorization.

149214037549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 149214037549 in words is "one hundred forty-nine billion, two hundred fourteen million, thirty-seven thousand, five hundred forty-nine".