1171433245 has 4 divisors (see below), whose sum is σ = 1405719900. Its totient is φ = 937146592.

The previous prime is 1171433243. The next prime is 1171433281. The reversal of 1171433245 is 5423341711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5423341711 = 37 ⋅146576803.

It can be written as a sum of positive squares in 2 ways, for example, as 365497924 + 805935321 = 19118^2 + 28389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171433245 - 2¹ = 1171433243 is a prime.

It is a super-4 number, since 4×1171433245⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171433243) 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, 117143320 + ... + 117143329.

It is an arithmetic number, because the mean of its divisors is an integer number (351429975).

Almost surely, 2^1171433245 is an apocalyptic number.

It is an amenable number.

1171433245 is a deficient number, since it is larger than the sum of its proper divisors (234286655).

1171433245 is an equidigital number, since it uses as much as digits as its factorization.

1171433245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234286654.

The product of its digits is 10080, while the sum is 31.

The square root of 1171433245 is about 34226.2069911347. The cubic root of 1171433245 is about 1054.1583383206.

Adding to 1171433245 its reverse (5423341711), we get a palindrome (6594774956).

The spelling of 1171433245 in words is "one billion, one hundred seventy-one million, four hundred thirty-three thousand, two hundred forty-five".