149786670 has 64 divisors (see below), whose sum is σ = 393361920. Its totient is φ = 36201600.

The previous prime is 149786669. The next prime is 149786683. The reversal of 149786670 is 76687941.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 178111 + ... + 178949.

It is an arithmetic number, because the mean of its divisors is an integer number (6146280).

Almost surely, 2^149786670 is an apocalyptic number.

149786670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149786670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196680960).

149786670 is an abundant number, since it is smaller than the sum of its proper divisors (243575250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149786670 is a wasteful number, since it uses less digits than its factorization.

149786670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 149786670 is about 12238.7364543894. The cubic root of 149786670 is about 531.0772795835.

The spelling of 149786670 in words is "one hundred forty-nine million, seven hundred eighty-six thousand, six hundred seventy".