147021000 has 128 divisors (see below), whose sum is σ = 524309760. Its totient is φ = 33600000.

The previous prime is 147020989. The next prime is 147021073. The reversal of 147021000 is 120741.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 17500 + ... + 24500.

It is an arithmetic number, because the mean of its divisors is an integer number (4096170).

Almost surely, 2^147021000 is an apocalyptic number.

147021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262154880).

147021000 is an abundant number, since it is smaller than the sum of its proper divisors (377288760).

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

147021000 is a wasteful number, since it uses less digits than its factorization.

147021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032 (or 7018 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 147021000 is about 12125.2216474587. The cubic root of 147021000 is about 527.7883391751.

Adding to 147021000 its reverse (120741), we get a palindrome (147141741).

The spelling of 147021000 in words is "one hundred forty-seven million, twenty-one thousand".