149212103 has 2 divisors, whose sum is σ = 149212104. Its totient is φ = 149212102.

The previous prime is 149212067. The next prime is 149212123. The reversal of 149212103 is 301212941.

It is a strong prime.

It is an emirp because it is prime and its reverse (301212941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149212103 - 2⁸ = 149211847 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149212123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74606051 + 74606052.

It is an arithmetic number, because the mean of its divisors is an integer number (74606052).

Almost surely, 2^149212103 is an apocalyptic number.

149212103 is a deficient number, since it is larger than the sum of its proper divisors (1).

149212103 is an equidigital number, since it uses as much as digits as its factorization.

149212103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 149212103 is about 12215.2406034429. The cubic root of 149212103 is about 530.3973559859.

The spelling of 149212103 in words is "one hundred forty-nine million, two hundred twelve thousand, one hundred three".