16361903 has 4 divisors (see below), whose sum is σ = 16408608. Its totient is φ = 16315200.

The previous prime is 16361897. The next prime is 16361909. The reversal of 16361903 is 30916361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30916361 = 7 ⋅4416623.

It is an interprime number because it is at equal distance from previous prime (16361897) and next prime (16361909).

It is a cyclic number.

It is not a de Polignac number, because 16361903 - 2¹⁰ = 16360879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16361909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22823 + ... + 23528.

It is an arithmetic number, because the mean of its divisors is an integer number (4102152).

Almost surely, 2^16361903 is an apocalyptic number.

16361903 is a deficient number, since it is larger than the sum of its proper divisors (46705).

16361903 is an equidigital number, since it uses as much as digits as its factorization.

16361903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46704.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 16361903 is about 4044.9849196258. The cubic root of 16361903 is about 253.8699346490.

The spelling of 16361903 in words is "sixteen million, three hundred sixty-one thousand, nine hundred three".