1190072549 has 4 divisors (see below), whose sum is σ = 1190159520. Its totient is φ = 1189985580.

The previous prime is 1190072531. The next prime is 1190072563. The reversal of 1190072549 is 9452700911.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1190072549 - 2⁸ = 1190072293 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 (1190072249) 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, 17969 + ... + 51990.

It is an arithmetic number, because the mean of its divisors is an integer number (297539880).

Almost surely, 2^1190072549 is an apocalyptic number.

It is an amenable number.

1190072549 is a deficient number, since it is larger than the sum of its proper divisors (86971).

1190072549 is an equidigital number, since it uses as much as digits as its factorization.

1190072549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86970.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 1190072549 is about 34497.4281505158. The cubic root of 1190072549 is about 1059.7200367199.

The spelling of 1190072549 in words is "one billion, one hundred ninety million, seventy-two thousand, five hundred forty-nine".