149058691 has 2 divisors, whose sum is σ = 149058692. Its totient is φ = 149058690.

The previous prime is 149058677. The next prime is 149058709. The reversal of 149058691 is 196850941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149058691 - 2¹¹ = 149056643 is a prime.

It is not a weakly prime, because it can be changed into another prime (149058391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74529345 + 74529346.

It is an arithmetic number, because the mean of its divisors is an integer number (74529346).

Almost surely, 2^149058691 is an apocalyptic number.

149058691 is a deficient number, since it is larger than the sum of its proper divisors (1).

149058691 is an equidigital number, since it uses as much as digits as its factorization.

149058691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 149058691 is about 12208.9594560716. The cubic root of 149058691 is about 530.2155181412.

The spelling of 149058691 in words is "one hundred forty-nine million, fifty-eight thousand, six hundred ninety-one".