147021001 has 8 divisors (see below), whose sum is σ = 148467200. Its totient is φ = 145582272.

The previous prime is 147020989. The next prime is 147021073. The reversal of 147021001 is 100120741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147021001 - 2¹¹ = 147018953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147021101) 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 7 ways as a sum of consecutive naturals, for example, 42721 + ... + 46033.

It is an arithmetic number, because the mean of its divisors is an integer number (18558400).

Almost surely, 2^147021001 is an apocalyptic number.

147021001 is the 7001-st hex number.

It is an amenable number.

147021001 is a deficient number, since it is larger than the sum of its proper divisors (1446199).

147021001 is a wasteful number, since it uses less digits than its factorization.

147021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 147021001 is about 12125.2216886950. The cubic root of 147021001 is about 527.7883403718.

Adding to 147021001 its reverse (100120741), we get a palindrome (247141742).

The spelling of 147021001 in words is "one hundred forty-seven million, twenty-one thousand, one".