149971470 has 64 divisors (see below), whose sum is σ = 406218240. Its totient is φ = 35100800.

The previous prime is 149971469. The next prime is 149971513. The reversal of 149971470 is 74179941.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 1735 + ... + 17405.

It is an arithmetic number, because the mean of its divisors is an integer number (6347160).

Almost surely, 2^149971470 is an apocalyptic number.

149971470 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 149971470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203109120).

149971470 is an abundant number, since it is smaller than the sum of its proper divisors (256246770).

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

149971470 is a wasteful number, since it uses less digits than its factorization.

149971470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15721.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 149971470 is about 12246.2839261549. The cubic root of 149971470 is about 531.2955961787.

The spelling of 149971470 in words is "one hundred forty-nine million, nine hundred seventy-one thousand, four hundred seventy".