149212667 has 2 divisors, whose sum is σ = 149212668. Its totient is φ = 149212666.

The previous prime is 149212633. The next prime is 149212699. The reversal of 149212667 is 766212941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149212667 - 2⁶ = 149212603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149212667.

It is not a weakly prime, because it can be changed into another prime (149212067) 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, 74606333 + 74606334.

It is an arithmetic number, because the mean of its divisors is an integer number (74606334).

Almost surely, 2^149212667 is an apocalyptic number.

149212667 is a deficient number, since it is larger than the sum of its proper divisors (1).

149212667 is an equidigital number, since it uses as much as digits as its factorization.

149212667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 149212667 is about 12215.2636893356. The cubic root of 149212667 is about 530.3980242600.

The spelling of 149212667 in words is "one hundred forty-nine million, two hundred twelve thousand, six hundred sixty-seven".