149351970 has 64 divisors (see below), whose sum is σ = 399530880. Its totient is φ = 35509248.

The previous prime is 149351963. The next prime is 149352013. The reversal of 149351970 is 79153941.

It is a happy number.

149351970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1984 + ... + 17396.

It is an arithmetic number, because the mean of its divisors is an integer number (6242670).

Almost surely, 2^149351970 is an apocalyptic number.

149351970 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 149351970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199765440).

149351970 is an abundant number, since it is smaller than the sum of its proper divisors (250178910).

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

149351970 is a wasteful number, since it uses less digits than its factorization.

149351970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15459.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 149351970 is about 12220.9643645663. The cubic root of 149351970 is about 530.5630304809.

The spelling of 149351970 in words is "one hundred forty-nine million, three hundred fifty-one thousand, nine hundred seventy".