16745501 has 2 divisors, whose sum is σ = 16745502. Its totient is φ = 16745500.

The previous prime is 16745483. The next prime is 16745503. The reversal of 16745501 is 10554761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16605625 + 139876 = 4075^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 16745501 - 2⁶ = 16745437 is a prime.

Together with 16745503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16745503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8372750 + 8372751.

It is an arithmetic number, because the mean of its divisors is an integer number (8372751).

Almost surely, 2^16745501 is an apocalyptic number.

It is an amenable number.

16745501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16745501 is an equidigital number, since it uses as much as digits as its factorization.

16745501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 16745501 is about 4092.1267086932. The cubic root of 16745501 is about 255.8385874162.

The spelling of 16745501 in words is "sixteen million, seven hundred forty-five thousand, five hundred one".