1190775971 has 16 divisors (see below), whose sum is σ = 1485754368. Its totient is φ = 927158400.

The previous prime is 1190775967. The next prime is 1190775979. The reversal of 1190775971 is 1795770911.

It is not a de Polignac number, because 1190775971 - 2² = 1190775967 is a prime.

It is a super-2 number, since 2×1190775971² = 2835894826221985682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1190775979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108011 + ... + 118523.

It is an arithmetic number, because the mean of its divisors is an integer number (92859648).

Almost surely, 2^1190775971 is an apocalyptic number.

1190775971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1190775971 is a deficient number, since it is larger than the sum of its proper divisors (294978397).

1190775971 is a wasteful number, since it uses less digits than its factorization.

1190775971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12002.

The product of its (nonzero) digits is 138915, while the sum is 47.

The square root of 1190775971 is about 34507.6219261774. The cubic root of 1190775971 is about 1059.9287868974.

It can be divided in two parts, 11907 and 75971, that added together give a palindrome (87878).

The spelling of 1190775971 in words is "one billion, one hundred ninety million, seven hundred seventy-five thousand, nine hundred seventy-one".