641272202 has 4 divisors (see below), whose sum is σ = 961908306. Its totient is φ = 320636100.

The previous prime is 641272171. The next prime is 641272217. The reversal of 641272202 is 202272146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202272146 = 2 ⋅101136073.

It can be written as a sum of positive squares in only one way, i.e., 582305161 + 58967041 = 24131^2 + 7679^2 .

It is a super-2 number, since 2×641272202² = 822460074115857608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160318049 + ... + 160318052.

Almost surely, 2^641272202 is an apocalyptic number.

641272202 is a deficient number, since it is larger than the sum of its proper divisors (320636104).

641272202 is a wasteful number, since it uses less digits than its factorization.

641272202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320636103.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 641272202 is about 25323.3528980662. The cubic root of 641272202 is about 862.3445139306.

The spelling of 641272202 in words is "six hundred forty-one million, two hundred seventy-two thousand, two hundred two".