149271570 has 96 divisors (see below), whose sum is σ = 454446720. Its totient is φ = 33281280.

The previous prime is 149271559. The next prime is 149271571. The reversal of 149271570 is 75172941.

It is a happy number.

149271570 is a `hidden beast` number, since 14 + 9 + 2 + 71 + 570 = 666.

It is a super-2 number, since 2×149271570² = 44564003220529800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149271571) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22941 + ... + 28719.

It is an arithmetic number, because the mean of its divisors is an integer number (4733820).

Almost surely, 2^149271570 is an apocalyptic number.

149271570 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 149271570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227223360).

149271570 is an abundant number, since it is smaller than the sum of its proper divisors (305175150).

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

149271570 is a wasteful number, since it uses less digits than its factorization.

149271570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840 (or 5837 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 149271570 is about 12217.6744923083. The cubic root of 149271570 is about 530.4678081582.

The spelling of 149271570 in words is "one hundred forty-nine million, two hundred seventy-one thousand, five hundred seventy".