149830691 has 2 divisors, whose sum is σ = 149830692. Its totient is φ = 149830690.

The previous prime is 149830633. The next prime is 149830727. The reversal of 149830691 is 196038941.

149830691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149830691 - 2¹⁸ = 149568547 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149830631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74915345 + 74915346.

It is an arithmetic number, because the mean of its divisors is an integer number (74915346).

Almost surely, 2^149830691 is an apocalyptic number.

149830691 is a deficient number, since it is larger than the sum of its proper divisors (1).

149830691 is an equidigital number, since it uses as much as digits as its factorization.

149830691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 149830691 is about 12240.5347513906. The cubic root of 149830691 is about 531.1293008193.

The spelling of 149830691 in words is "one hundred forty-nine million, eight hundred thirty thousand, six hundred ninety-one".