149905933 has 2 divisors, whose sum is σ = 149905934. Its totient is φ = 149905932.

The previous prime is 149905883. The next prime is 149905939. The reversal of 149905933 is 339509941.

149905933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149891049 + 14884 = 12243^2 + 122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149905933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149905933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149905939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74952966 + 74952967.

It is an arithmetic number, because the mean of its divisors is an integer number (74952967).

Almost surely, 2^149905933 is an apocalyptic number.

It is an amenable number.

149905933 is a deficient number, since it is larger than the sum of its proper divisors (1).

149905933 is an equidigital number, since it uses as much as digits as its factorization.

149905933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 149905933 is about 12243.6078424621. The cubic root of 149905933 is about 531.2181934729.

The spelling of 149905933 in words is "one hundred forty-nine million, nine hundred five thousand, nine hundred thirty-three".