1145751197 has 4 divisors (see below), whose sum is σ = 1145833500. Its totient is φ = 1145668896.

The previous prime is 1145751179. The next prime is 1145751209. The reversal of 1145751197 is 7911575411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 30591961 + 1115159236 = 5531^2 + 33394^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145751197 - 2¹⁶ = 1145685661 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 (1145751137) 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, 14528 + ... + 50025.

It is an arithmetic number, because the mean of its divisors is an integer number (286458375).

Almost surely, 2^1145751197 is an apocalyptic number.

It is an amenable number.

1145751197 is a deficient number, since it is larger than the sum of its proper divisors (82303).

1145751197 is an equidigital number, since it uses as much as digits as its factorization.

1145751197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82302.

The product of its digits is 44100, while the sum is 41.

The square root of 1145751197 is about 33848.9467635257. The cubic root of 1145751197 is about 1046.3976923329.

The spelling of 1145751197 in words is "one billion, one hundred forty-five million, seven hundred fifty-one thousand, one hundred ninety-seven".