1145273851 has 2 divisors, whose sum is σ = 1145273852. Its totient is φ = 1145273850.

The previous prime is 1145273837. The next prime is 1145273861. The reversal of 1145273851 is 1583725411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145273851 - 2⁵ = 1145273819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1145273851.

It is not a weakly prime, because it can be changed into another prime (1145273821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572636925 + 572636926.

It is an arithmetic number, because the mean of its divisors is an integer number (572636926).

Almost surely, 2^1145273851 is an apocalyptic number.

1145273851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145273851 is an equidigital number, since it uses as much as digits as its factorization.

1145273851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 37.

The square root of 1145273851 is about 33841.8949085302. The cubic root of 1145273851 is about 1046.2523544571.

The spelling of 1145273851 in words is "one billion, one hundred forty-five million, two hundred seventy-three thousand, eight hundred fifty-one".