1921141352 has 32 divisors (see below), whose sum is σ = 3882158280. Its totient is φ = 886010880.

The previous prime is 1921141351. The next prime is 1921141367. The reversal of 1921141352 is 2531411291.

It can be written as a sum of positive squares in 4 ways, for example, as 1443544036 + 477597316 = 37994^2 + 21854^2 .

It is not an unprimeable number, because it can be changed into a prime (1921141351) 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, 147788 + ... + 160260.

Almost surely, 2^1921141352 is an apocalyptic number.

It is an amenable number.

1921141352 is an abundant number, since it is smaller than the sum of its proper divisors (1961016928).

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

1921141352 is a wasteful number, since it uses less digits than its factorization.

1921141352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13973 (or 13969 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 1921141352 is about 43830.8265037291. The cubic root of 1921141352 is about 1243.1392345714.

The spelling of 1921141352 in words is "one billion, nine hundred twenty-one million, one hundred forty-one thousand, three hundred fifty-two".