1174455421 has 4 divisors (see below), whose sum is σ = 1243541052. Its totient is φ = 1105369792.

The previous prime is 1174455409. The next prime is 1174455437. The reversal of 1174455421 is 1245544711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1245544711 = 30649 ⋅40639.

It can be written as a sum of positive squares in 2 ways, for example, as 1076168025 + 98287396 = 32805^2 + 9914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1174455421 - 2¹¹ = 1174453373 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 (1174450421) 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, 34542790 + ... + 34542823.

It is an arithmetic number, because the mean of its divisors is an integer number (310885263).

Almost surely, 2^1174455421 is an apocalyptic number.

It is an amenable number.

1174455421 is a deficient number, since it is larger than the sum of its proper divisors (69085631).

1174455421 is an equidigital number, since it uses as much as digits as its factorization.

1174455421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69085630.

The product of its digits is 22400, while the sum is 34.

The square root of 1174455421 is about 34270.3285802748. The cubic root of 1174455421 is about 1055.0640994873.

The spelling of 1174455421 in words is "one billion, one hundred seventy-four million, four hundred fifty-five thousand, four hundred twenty-one".