189464503 has 2 divisors, whose sum is σ = 189464504. Its totient is φ = 189464502.

The previous prime is 189464491. The next prime is 189464573. The reversal of 189464503 is 305464981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189464503 - 2²⁵ = 155910071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189464573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94732251 + 94732252.

It is an arithmetic number, because the mean of its divisors is an integer number (94732252).

Almost surely, 2^189464503 is an apocalyptic number.

189464503 is a deficient number, since it is larger than the sum of its proper divisors (1).

189464503 is an equidigital number, since it uses as much as digits as its factorization.

189464503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 189464503 is about 13764.6105284530. The cubic root of 189464503 is about 574.3491089742.

The spelling of 189464503 in words is "one hundred eighty-nine million, four hundred sixty-four thousand, five hundred three".