191746064 has 10 divisors (see below), whose sum is σ = 371508030. Its totient is φ = 95873024.

The previous prime is 191746007. The next prime is 191746069. The reversal of 191746064 is 460647191.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 179774464 + 11971600 = 13408^2 + 3460^2 .

It is not an unprimeable number, because it can be changed into a prime (191746069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5992049 + ... + 5992080.

It is an arithmetic number, because the mean of its divisors is an integer number (37150803).

Almost surely, 2^191746064 is an apocalyptic number.

It is an amenable number.

191746064 is a deficient number, since it is larger than the sum of its proper divisors (179761966).

191746064 is a wasteful number, since it uses less digits than its factorization.

191746064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11984137 (or 11984131 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 191746064 is about 13847.2403026740. The cubic root of 191746064 is about 576.6453832159.

The spelling of 191746064 in words is "one hundred ninety-one million, seven hundred forty-six thousand, sixty-four".