1145750231 has 2 divisors, whose sum is σ = 1145750232. Its totient is φ = 1145750230.

The previous prime is 1145750213. The next prime is 1145750233. The reversal of 1145750231 is 1320575411.

Together with previous prime (1145750213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145750231 - 2⁶ = 1145750167 is a prime.

It is a super-2 number, since 2×1145750231² = 2625487183673106722, which contains 22 as substring.

Together with 1145750233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145750194 and 1145750203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145750233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572875115 + 572875116.

It is an arithmetic number, because the mean of its divisors is an integer number (572875116).

Almost surely, 2^1145750231 is an apocalyptic number.

1145750231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145750231 is an equidigital number, since it uses as much as digits as its factorization.

1145750231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1145750231 is about 33848.9324942457. The cubic root of 1145750231 is about 1046.3973982550.

The spelling of 1145750231 in words is "one billion, one hundred forty-five million, seven hundred fifty thousand, two hundred thirty-one".