189305701 has 4 divisors (see below), whose sum is σ = 203867692. Its totient is φ = 174743712.

The previous prime is 189305681. The next prime is 189305719. The reversal of 189305701 is 107503981.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130553476 + 58752225 = 11426^2 + 7665^2 .

It is a de Polignac number, because none of the positive numbers 2^k-189305701 is a prime.

It is a super-2 number, since 2×189305701² = 71673296862202802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189300701) 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 3 ways as a sum of consecutive naturals, for example, 7280976 + ... + 7281001.

It is an arithmetic number, because the mean of its divisors is an integer number (50966923).

Almost surely, 2^189305701 is an apocalyptic number.

It is an amenable number.

189305701 is a deficient number, since it is larger than the sum of its proper divisors (14561991).

189305701 is a wasteful number, since it uses less digits than its factorization.

189305701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14561990.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 189305701 is about 13758.8408305351. The cubic root of 189305701 is about 574.1885982014.

The spelling of 189305701 in words is "one hundred eighty-nine million, three hundred five thousand, seven hundred one".