149667870 has 64 divisors (see below), whose sum is σ = 396887040. Its totient is φ = 35817600.

The previous prime is 149667853. The next prime is 149667871. The reversal of 149667870 is 78766941.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149667871) 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 in 31 ways as a sum of consecutive naturals, for example, 23200 + ... + 28940.

It is an arithmetic number, because the mean of its divisors is an integer number (6201360).

Almost surely, 2^149667870 is an apocalyptic number.

149667870 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 149667870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198443520).

149667870 is an abundant number, since it is smaller than the sum of its proper divisors (247219170).

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

149667870 is a wasteful number, since it uses less digits than its factorization.

149667870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841.

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

The square root of 149667870 is about 12233.8820494559. The cubic root of 149667870 is about 530.9368383632.

The spelling of 149667870 in words is "one hundred forty-nine million, six hundred sixty-seven thousand, eight hundred seventy".