1621341148 has 24 divisors (see below), whose sum is σ = 3243884672. Its totient is φ = 694602864.

The previous prime is 1621341131. The next prime is 1621341151. The reversal of 1621341148 is 8411431261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79411 + ... + 97717.

Almost surely, 2^1621341148 is an apocalyptic number.

It is an amenable number.

1621341148 is an abundant number, since it is smaller than the sum of its proper divisors (1622543524).

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

1621341148 is a wasteful number, since it uses less digits than its factorization.

1621341148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21481 (or 21479 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 1621341148 is about 40265.8806932122. The cubic root of 1621341148 is about 1174.7843027634.

The spelling of 1621341148 in words is "one billion, six hundred twenty-one million, three hundred forty-one thousand, one hundred forty-eight".