1131641930 has 8 divisors (see below), whose sum is σ = 2036955492. Its totient is φ = 452656768.

The previous prime is 1131641921. The next prime is 1131641963. The reversal of 1131641930 is 391461311.

It can be written as a sum of positive squares in 2 ways, for example, as 1085768401 + 45873529 = 32951^2 + 6773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1131641930² = 2561226915468249800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131641893 and 1131641902.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56582087 + ... + 56582106.

Almost surely, 2^1131641930 is an apocalyptic number.

1131641930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131641930 is a deficient number, since it is larger than the sum of its proper divisors (905313562).

1131641930 is a wasteful number, since it uses less digits than its factorization.

1131641930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113164200.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1131641930 is about 33639.8859986178. The cubic root of 1131641930 is about 1042.0846775742.

The spelling of 1131641930 in words is "one billion, one hundred thirty-one million, six hundred forty-one thousand, nine hundred thirty".