1943225947 has 16 divisors (see below), whose sum is σ = 2143824480. Its totient is φ = 1750378752.

The previous prime is 1943225899. The next prime is 1943225957. The reversal of 1943225947 is 7495223491.

It is a cyclic number.

It is not a de Polignac number, because 1943225947 - 2⁷ = 1943225819 is a prime.

It is a super-2 number, since 2×1943225947² = 7552254162188093618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1943225897 and 1943225906.

It is not an unprimeable number, because it can be changed into a prime (1943225957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95833 + ... + 114325.

It is an arithmetic number, because the mean of its divisors is an integer number (133989030).

Almost surely, 2^1943225947 is an apocalyptic number.

1943225947 is a deficient number, since it is larger than the sum of its proper divisors (200598533).

1943225947 is a wasteful number, since it uses less digits than its factorization.

1943225947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18702.

The product of its digits is 544320, while the sum is 46.

The square root of 1943225947 is about 44082.0365568561. The cubic root of 1943225947 is about 1247.8846241942.

The spelling of 1943225947 in words is "one billion, nine hundred forty-three million, two hundred twenty-five thousand, nine hundred forty-seven".