149826641 has 2 divisors, whose sum is σ = 149826642. Its totient is φ = 149826640.

The previous prime is 149826637. The next prime is 149826667. The reversal of 149826641 is 146628941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112360000 + 37466641 = 10600^2 + 6121^2 .

It is a cyclic number.

It is not a de Polignac number, because 149826641 - 2² = 149826637 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149826041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74913320 + 74913321.

It is an arithmetic number, because the mean of its divisors is an integer number (74913321).

Almost surely, 2^149826641 is an apocalyptic number.

It is an amenable number.

149826641 is a deficient number, since it is larger than the sum of its proper divisors (1).

149826641 is an equidigital number, since it uses as much as digits as its factorization.

149826641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 149826641 is about 12240.3693163238. The cubic root of 149826641 is about 531.1245152109.

The spelling of 149826641 in words is "one hundred forty-nine million, eight hundred twenty-six thousand, six hundred forty-one".