149949829 has 2 divisors, whose sum is σ = 149949830. Its totient is φ = 149949828.

The previous prime is 149949827. The next prime is 149949841. The reversal of 149949829 is 928949941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96000804 + 53949025 = 9798^2 + 7345^2 .

It is a cyclic number.

It is not a de Polignac number, because 149949829 - 2¹ = 149949827 is a prime.

Together with 149949827, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 149949829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149949823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74974914 + 74974915.

It is an arithmetic number, because the mean of its divisors is an integer number (74974915).

Almost surely, 2^149949829 is an apocalyptic number.

It is an amenable number.

149949829 is a deficient number, since it is larger than the sum of its proper divisors (1).

149949829 is an equidigital number, since it uses as much as digits as its factorization.

149949829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 55.

The square root of 149949829 is about 12245.4003201202. The cubic root of 149949829 is about 531.2700394932.

The spelling of 149949829 in words is "one hundred forty-nine million, nine hundred forty-nine thousand, eight hundred twenty-nine".