149498543 has 2 divisors, whose sum is σ = 149498544. Its totient is φ = 149498542.

The previous prime is 149498497. The next prime is 149498549. The reversal of 149498543 is 345894941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149498543 - 2¹⁶ = 149433007 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149498549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74749271 + 74749272.

It is an arithmetic number, because the mean of its divisors is an integer number (74749272).

Almost surely, 2^149498543 is an apocalyptic number.

149498543 is a deficient number, since it is larger than the sum of its proper divisors (1).

149498543 is an equidigital number, since it uses as much as digits as its factorization.

149498543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 149498543 is about 12226.9596793316. The cubic root of 149498543 is about 530.7365373747.

The spelling of 149498543 in words is "one hundred forty-nine million, four hundred ninety-eight thousand, five hundred forty-three".