191012552 has 16 divisors (see below), whose sum is σ = 359445660. Its totient is φ = 95160384.

The previous prime is 191012551. The next prime is 191012557. The reversal of 191012552 is 255210191.

191012552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140517316 + 50495236 = 11854^2 + 7106^2 .

It is not an unprimeable number, because it can be changed into a prime (191012551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40883 + ... + 45314.

Almost surely, 2^191012552 is an apocalyptic number.

It is an amenable number.

191012552 is a deficient number, since it is larger than the sum of its proper divisors (168433108).

191012552 is a wasteful number, since it uses less digits than its factorization.

191012552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86480 (or 86476 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 191012552 is about 13820.7290690470. The cubic root of 191012552 is about 575.9091372234.

The spelling of 191012552 in words is "one hundred ninety-one million, twelve thousand, five hundred fifty-two".