1135243401 has 8 divisors (see below), whose sum is σ = 1513901760. Its totient is φ = 756706992.

The previous prime is 1135243399. The next prime is 1135243409. The reversal of 1135243401 is 1043425311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1135243401 - 2¹ = 1135243399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1135243409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5941 + ... + 48018.

It is an arithmetic number, because the mean of its divisors is an integer number (189237720).

Almost surely, 2^1135243401 is an apocalyptic number.

It is an amenable number.

1135243401 is a deficient number, since it is larger than the sum of its proper divisors (378658359).

1135243401 is an equidigital number, since it uses as much as digits as its factorization.

1135243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60975.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1135243401 is about 33693.3732505370. The cubic root of 1135243401 is about 1043.1889913742.

Adding to 1135243401 its reverse (1043425311), we get a palindrome (2178668712).

The spelling of 1135243401 in words is "one billion, one hundred thirty-five million, two hundred forty-three thousand, four hundred one".