191456552 has 64 divisors (see below), whose sum is σ = 427472640. Its totient is φ = 78681600.

The previous prime is 191456513. The next prime is 191456557. The reversal of 191456552 is 255654191.

It is a super-2 number, since 2×191456552² = 73311222607457408, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (191456557) 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 in 15 ways as a sum of consecutive naturals, for example, 139373 + ... + 140739.

It is an arithmetic number, because the mean of its divisors is an integer number (6679260).

Almost surely, 2^191456552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 191456552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213736320).

191456552 is an abundant number, since it is smaller than the sum of its proper divisors (236016088).

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

191456552 is a wasteful number, since it uses less digits than its factorization.

191456552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482 (or 1478 counting only the distinct ones).

The product of its digits is 54000, while the sum is 38.

The square root of 191456552 is about 13836.7825739946. The cubic root of 191456552 is about 576.3550168019.

The spelling of 191456552 in words is "one hundred ninety-one million, four hundred fifty-six thousand, five hundred fifty-two".