149440601 has 2 divisors, whose sum is σ = 149440602. Its totient is φ = 149440600.

The previous prime is 149440597. The next prime is 149440633. The reversal of 149440601 is 106044941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146991376 + 2449225 = 12124^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 149440601 - 2² = 149440597 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (149440651) 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, 74720300 + 74720301.

It is an arithmetic number, because the mean of its divisors is an integer number (74720301).

Almost surely, 2^149440601 is an apocalyptic number.

It is an amenable number.

149440601 is a deficient number, since it is larger than the sum of its proper divisors (1).

149440601 is an equidigital number, since it uses as much as digits as its factorization.

149440601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 149440601 is about 12224.5900135751. The cubic root of 149440601 is about 530.6679616557.

The spelling of 149440601 in words is "one hundred forty-nine million, four hundred forty thousand, six hundred one".