1145235733 has 4 divisors (see below), whose sum is σ = 1152093600. Its totient is φ = 1138377868.

The previous prime is 1145235703. The next prime is 1145235737. The reversal of 1145235733 is 3375325411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3375325411 = 487 ⋅6930853.

It is a cyclic number.

It is not a de Polignac number, because 1145235733 - 2²⁵ = 1111681301 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 (1145235737) 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, 3428683 + ... + 3429016.

It is an arithmetic number, because the mean of its divisors is an integer number (288023400).

Almost surely, 2^1145235733 is an apocalyptic number.

It is an amenable number.

1145235733 is a deficient number, since it is larger than the sum of its proper divisors (6857867).

1145235733 is an equidigital number, since it uses as much as digits as its factorization.

1145235733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857866.

The product of its digits is 37800, while the sum is 34.

The square root of 1145235733 is about 33841.3317261600. The cubic root of 1145235733 is about 1046.2407469015.

The spelling of 1145235733 in words is "one billion, one hundred forty-five million, two hundred thirty-five thousand, seven hundred thirty-three".