202147001 has 24 divisors (see below), whose sum is σ = 246196224. Its totient is φ = 165291840.

The previous prime is 202146979. The next prime is 202147007. The reversal of 202147001 is 100741202.

It is not a de Polignac number, because 202147001 - 2¹⁸ = 201884857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202147007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 109976 + ... + 111798.

It is an arithmetic number, because the mean of its divisors is an integer number (10258176).

Almost surely, 2^202147001 is an apocalyptic number.

It is an amenable number.

202147001 is a deficient number, since it is larger than the sum of its proper divisors (44049223).

202147001 is a wasteful number, since it uses less digits than its factorization.

202147001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 202147001 is about 14217.8409401709. The cubic root of 202147001 is about 586.8887268802. Note that the first 3 decimals are identical.

Adding to 202147001 its reverse (100741202), we get a palindrome (302888203).

The spelling of 202147001 in words is "two hundred two million, one hundred forty-seven thousand, one".