149603 has 2 divisors, whose sum is σ = 149604. Its totient is φ = 149602.

The previous prime is 149579. The next prime is 149623. The reversal of 149603 is 306941.

It is a strong prime.

It is an emirp because it is prime and its reverse (306941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149603 - 2¹⁰ = 148579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74801 + 74802.

It is an arithmetic number, because the mean of its divisors is an integer number (74802).

2¹⁴⁹⁶⁰³ is an apocalyptic number.

149603 is a deficient number, since it is larger than the sum of its proper divisors (1).

149603 is an equidigital number, since it uses as much as digits as its factorization.

149603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 149603 is about 386.7854702545. The cubic root of 149603 is about 53.0860119938.

The spelling of 149603 in words is "one hundred forty-nine thousand, six hundred three".