1189470653 has 4 divisors (see below), whose sum is σ = 1359395040. Its totient is φ = 1019546268.

The previous prime is 1189470649. The next prime is 1189470673. The reversal of 1189470653 is 3560749811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1189470653 - 2² = 1189470649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189470643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84962183 + ... + 84962196.

It is an arithmetic number, because the mean of its divisors is an integer number (339848760).

Almost surely, 2^1189470653 is an apocalyptic number.

It is an amenable number.

1189470653 is a deficient number, since it is larger than the sum of its proper divisors (169924387).

1189470653 is an equidigital number, since it uses as much as digits as its factorization.

1189470653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169924386.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1189470653 is about 34488.7032664320. The cubic root of 1189470653 is about 1059.5413504668.

The spelling of 1189470653 in words is "one billion, one hundred eighty-nine million, four hundred seventy thousand, six hundred fifty-three".