191030552 has 8 divisors (see below), whose sum is σ = 358182300. Its totient is φ = 95515272.

The previous prime is 191030551. The next prime is 191030573. The reversal of 191030552 is 255030191.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191030551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11939402 + ... + 11939417.

Almost surely, 2^191030552 is an apocalyptic number.

It is an amenable number.

191030552 is a deficient number, since it is larger than the sum of its proper divisors (167151748).

191030552 is a wasteful number, since it uses less digits than its factorization.

191030552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23878825 (or 23878821 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 191030552 is about 13821.3802494541. The cubic root of 191030552 is about 575.9272268529.

The spelling of 191030552 in words is "one hundred ninety-one million, thirty thousand, five hundred fifty-two".