641202146 has 8 divisors (see below), whose sum is σ = 1035788124. Its totient is φ = 295939440.

The previous prime is 641202113. The next prime is 641202161.

641202146 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 626951521 + 14250625 = 25039^2 + 3775^2 .

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

It is a super-2 number, since 2×641202146² = 822280384070010632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 24661621 = 641202146 / (6 + 4 + 1 + 2 + 0 + 2 + 1 + 4 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12330785 + ... + 12330836.

Almost surely, 2^641202146 is an apocalyptic number.

641202146 is a deficient number, since it is larger than the sum of its proper divisors (394585978).

641202146 is a wasteful number, since it uses less digits than its factorization.

641202146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24661636.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 641202146 is about 25321.9696311326. The cubic root of 641202146 is about 862.3131104137.

It can be divided in two parts, 64120 and 2146, that added together give a palindrome (66266).

The spelling of 641202146 in words is "six hundred forty-one million, two hundred two thousand, one hundred forty-six".