1145233031 has 8 divisors (see below), whose sum is σ = 1183209984. Its totient is φ = 1107320760.

The previous prime is 1145233027. The next prime is 1145233039. The reversal of 1145233031 is 1303325411.

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 1145233031 - 2² = 1145233027 is a prime.

It is a super-2 number, since 2×1145233031² = 2623117390586893922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145232988 and 1145233006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145233039) 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, 21236 + ... + 52358.

It is an arithmetic number, because the mean of its divisors is an integer number (147901248).

Almost surely, 2^1145233031 is an apocalyptic number.

1145233031 is a deficient number, since it is larger than the sum of its proper divisors (37976953).

1145233031 is a wasteful number, since it uses less digits than its factorization.

1145233031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32341.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1145233031 is about 33841.2918045396. The cubic root of 1145233031 is about 1046.2399240884.

Adding to 1145233031 its reverse (1303325411), we get a palindrome (2448558442).

The spelling of 1145233031 in words is "one billion, one hundred forty-five million, two hundred thirty-three thousand, thirty-one".