1135744121 has 8 divisors (see below), whose sum is σ = 1143469824. Its totient is φ = 1128029760.

The previous prime is 1135744087. The next prime is 1135744151. The reversal of 1135744121 is 1214475311.

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

It is a cyclic number.

It is not a de Polignac number, because 1135744121 - 2²⁶ = 1068635257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1135744151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310976 + ... + 314606.

It is an arithmetic number, because the mean of its divisors is an integer number (142933728).

Almost surely, 2^1135744121 is an apocalyptic number.

It is an amenable number.

1135744121 is a deficient number, since it is larger than the sum of its proper divisors (7725703).

1135744121 is a wasteful number, since it uses less digits than its factorization.

1135744121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671.

The product of its digits is 3360, while the sum is 29.

The square root of 1135744121 is about 33700.8029726296. The cubic root of 1135744121 is about 1043.3423413999.

The spelling of 1135744121 in words is "one billion, one hundred thirty-five million, seven hundred forty-four thousand, one hundred twenty-one".