1189914653 has 4 divisors (see below), whose sum is σ = 1252541760. Its totient is φ = 1127287548.

The previous prime is 1189914629. The next prime is 1189914667. The reversal of 1189914653 is 3564199811.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3564199811 = 39097 ⋅91163.

It is a cyclic number.

It is not a de Polignac number, because 1189914653 - 2⁶ = 1189914589 is a prime.

It is a super-2 number, since 2×1189914653² = 2831793762848220818, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1189914598 and 1189914607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189914613) 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, 31313525 + ... + 31313562.

It is an arithmetic number, because the mean of its divisors is an integer number (313135440).

Almost surely, 2^1189914653 is an apocalyptic number.

It is an amenable number.

1189914653 is a deficient number, since it is larger than the sum of its proper divisors (62627107).

1189914653 is an equidigital number, since it uses as much as digits as its factorization.

1189914653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62627106.

The product of its digits is 233280, while the sum is 47.

The square root of 1189914653 is about 34495.1395561752. The cubic root of 1189914653 is about 1059.6731676009.

The spelling of 1189914653 in words is "one billion, one hundred eighty-nine million, nine hundred fourteen thousand, six hundred fifty-three".