149803 has 2 divisors, whose sum is σ = 149804. Its totient is φ = 149802.

The previous prime is 149791. The next prime is 149827. The reversal of 149803 is 308941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149803 - 2⁵ = 149771 is a prime.

It is not a weakly prime, because it can be changed into another prime (149873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74901 + 74902.

It is an arithmetic number, because the mean of its divisors is an integer number (74902).

2¹⁴⁹⁸⁰³ is an apocalyptic number.

149803 is a deficient number, since it is larger than the sum of its proper divisors (1).

149803 is an equidigital number, since it uses as much as digits as its factorization.

149803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 149803 is about 387.0439251558. The cubic root of 149803 is about 53.1096578535.

The spelling of 149803 in words is "one hundred forty-nine thousand, eight hundred three".