149388667 has 2 divisors, whose sum is σ = 149388668. Its totient is φ = 149388666.

The previous prime is 149388661. The next prime is 149388677. The reversal of 149388667 is 766883941.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149388667 is a prime.

It is not a weakly prime, because it can be changed into another prime (149388661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74694333 + 74694334.

It is an arithmetic number, because the mean of its divisors is an integer number (74694334).

Almost surely, 2^149388667 is an apocalyptic number.

149388667 is a deficient number, since it is larger than the sum of its proper divisors (1).

149388667 is an equidigital number, since it uses as much as digits as its factorization.

149388667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The square root of 149388667 is about 12222.4656677775. The cubic root of 149388667 is about 530.6064814803.

The spelling of 149388667 in words is "one hundred forty-nine million, three hundred eighty-eight thousand, six hundred sixty-seven".