1186068421 has 4 divisors (see below), whose sum is σ = 1186428672. Its totient is φ = 1185708172.

The previous prime is 1186068413. The next prime is 1186068487. The reversal of 1186068421 is 1248606811.

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: 1248606811 = 5987 ⋅208553.

It is a cyclic number.

It is not a de Polignac number, because 1186068421 - 2³ = 1186068413 is a prime.

It is a super-3 number, since 3×1186068421³ (a number of 28 digits) contains 333 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 (1186068491) 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, 175141 + ... + 181786.

It is an arithmetic number, because the mean of its divisors is an integer number (296607168).

Almost surely, 2^1186068421 is an apocalyptic number.

It is an amenable number.

1186068421 is a deficient number, since it is larger than the sum of its proper divisors (360251).

1186068421 is an equidigital number, since it uses as much as digits as its factorization.

1186068421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360250.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1186068421 is about 34439.3440849271. The cubic root of 1186068421 is about 1058.5301869768.

The spelling of 1186068421 in words is "one billion, one hundred eighty-six million, sixty-eight thousand, four hundred twenty-one".