189047465 has 8 divisors (see below), whose sum is σ = 236720448. Its totient is φ = 144662320.

The previous prime is 189047461. The next prime is 189047477. The reversal of 189047465 is 564740981.

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

It is not a de Polignac number, because 189047465 - 2² = 189047461 is a prime.

It is a super-3 number, since 3×189047465³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189047461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821831 + ... + 822060.

It is an arithmetic number, because the mean of its divisors is an integer number (29590056).

Almost surely, 2^189047465 is an apocalyptic number.

It is an amenable number.

189047465 is a deficient number, since it is larger than the sum of its proper divisors (47672983).

189047465 is a wasteful number, since it uses less digits than its factorization.

189047465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643919.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 189047465 is about 13749.4532618574. The cubic root of 189047465 is about 573.9273916988.

The spelling of 189047465 in words is "one hundred eighty-nine million, forty-seven thousand, four hundred sixty-five".