149077646 has 16 divisors (see below), whose sum is σ = 230505264. Its totient is φ = 72268224.

The previous prime is 149077633. The next prime is 149077673. The reversal of 149077646 is 646770941.

It is a junction number, because it is equal to n+sod(n) for n = 149077597 and 149077606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5456 + ... + 18108.

It is an arithmetic number, because the mean of its divisors is an integer number (14406579).

Almost surely, 2^149077646 is an apocalyptic number.

149077646 is a deficient number, since it is larger than the sum of its proper divisors (81427618).

149077646 is a wasteful number, since it uses less digits than its factorization.

149077646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12835.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 149077646 is about 12209.7357055753. The cubic root of 149077646 is about 530.2379920832.

The spelling of 149077646 in words is "one hundred forty-nine million, seventy-seven thousand, six hundred forty-six".