641214651 has 32 divisors (see below), whose sum is σ = 1077926400. Its totient is φ = 329345280.

The previous prime is 641214649. The next prime is 641214659. The reversal of 641214651 is 156412146.

It is not a de Polignac number, because 641214651 - 2¹ = 641214649 is a prime.

It is a super-2 number, since 2×641214651² = 822312457314103602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641214659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4965 + ... + 36153.

It is an arithmetic number, because the mean of its divisors is an integer number (33685200).

Almost surely, 2^641214651 is an apocalyptic number.

641214651 is a deficient number, since it is larger than the sum of its proper divisors (436711749).

641214651 is a wasteful number, since it uses less digits than its factorization.

641214651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31299.

The product of its digits is 5760, while the sum is 30.

The square root of 641214651 is about 25322.2165498994. The cubic root of 641214651 is about 862.3187161110.

Adding to 641214651 its reverse (156412146), we get a palindrome (797626797).

The spelling of 641214651 in words is "six hundred forty-one million, two hundred fourteen thousand, six hundred fifty-one".