1135404025 has 12 divisors (see below), whose sum is σ = 1609029952. Its totient is φ = 778562640.

The previous prime is 1135404019. The next prime is 1135404029. The reversal of 1135404025 is 5204045311.

It is a happy number.

It is not a de Polignac number, because 1135404025 - 2¹¹ = 1135401977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135404029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3243837 + ... + 3244186.

Almost surely, 2^1135404025 is an apocalyptic number.

It is an amenable number.

1135404025 is a deficient number, since it is larger than the sum of its proper divisors (473625927).

1135404025 is an equidigital number, since it uses as much as digits as its factorization.

1135404025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488040 (or 6488035 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1135404025 is about 33695.7567803425. The cubic root of 1135404025 is about 1043.2381888375.

Adding to 1135404025 its reverse (5204045311), we get a palindrome (6339449336).

The spelling of 1135404025 in words is "one billion, one hundred thirty-five million, four hundred four thousand, twenty-five".