191045248 has 16 divisors (see below), whose sum is σ = 380598210. Its totient is φ = 95522560.

The previous prime is 191045233. The next prime is 191045249. The reversal of 191045248 is 842540191.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 134374464 + 56670784 = 11592^2 + 7528^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (191045249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746143 + ... + 746398.

Almost surely, 2^191045248 is an apocalyptic number.

It is an amenable number.

191045248 is a deficient number, since it is larger than the sum of its proper divisors (189552962).

191045248 is an equidigital number, since it uses as much as digits as its factorization.

191045248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492555 (or 1492543 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 191045248 is about 13821.9118793313. The cubic root of 191045248 is about 575.9419951878.

The spelling of 191045248 in words is "one hundred ninety-one million, forty-five thousand, two hundred forty-eight".