189701965 has 8 divisors (see below), whose sum is σ = 229731480. Its totient is φ = 150368832.

The previous prime is 189701959. The next prime is 189701969. The reversal of 189701965 is 569107981.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89661961 + 100040004 = 9469^2 + 10002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189701965 - 2¹⁵ = 189669197 is a prime.

It is a super-2 number, since 2×189701965² = 71973671049722450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189701969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173494 + ... + 174583.

It is an arithmetic number, because the mean of its divisors is an integer number (28716435).

Almost surely, 2^189701965 is an apocalyptic number.

It is an amenable number.

189701965 is a deficient number, since it is larger than the sum of its proper divisors (40029515).

189701965 is a wasteful number, since it uses less digits than its factorization.

189701965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348191.

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 189701965 is about 13773.2336435566. The cubic root of 189701965 is about 574.5889589136.

The spelling of 189701965 in words is "one hundred eighty-nine million, seven hundred one thousand, nine hundred sixty-five".