149020649 has 8 divisors (see below), whose sum is σ = 150833760. Its totient is φ = 147218400.

The previous prime is 149020639. The next prime is 149020673. The reversal of 149020649 is 946020941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149020649 - 2⁸ = 149020393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149020639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26789 + ... + 31869.

It is an arithmetic number, because the mean of its divisors is an integer number (18854220).

Almost surely, 2^149020649 is an apocalyptic number.

It is an amenable number.

149020649 is a deficient number, since it is larger than the sum of its proper divisors (1813111).

149020649 is a wasteful number, since it uses less digits than its factorization.

149020649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 149020649 is about 12207.4014024280. The cubic root of 149020649 is about 530.1704080019.

The spelling of 149020649 in words is "one hundred forty-nine million, twenty thousand, six hundred forty-nine".