641162148 has 24 divisors (see below), whose sum is σ = 1632049440. Its totient is φ = 194291520.

The previous prime is 641162129. The next prime is 641162149. The reversal of 641162148 is 841261146.

It is a super-2 number, since 2×641162148² = 822177800055947808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (641162149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2428513 + ... + 2428776.

It is an arithmetic number, because the mean of its divisors is an integer number (68002060).

Almost surely, 2^641162148 is an apocalyptic number.

It is an amenable number.

641162148 is an abundant number, since it is smaller than the sum of its proper divisors (990887292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641162148 is a wasteful number, since it uses less digits than its factorization.

641162148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857307 (or 4857305 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 641162148 is about 25321.1798303318. The cubic root of 641162148 is about 862.2951797620.

The spelling of 641162148 in words is "six hundred forty-one million, one hundred sixty-two thousand, one hundred forty-eight".