1191472127 has 2 divisors, whose sum is σ = 1191472128. Its totient is φ = 1191472126.

The previous prime is 1191472099. The next prime is 1191472141. The reversal of 1191472127 is 7212741911.

It is a strong prime.

It is an emirp because it is prime and its reverse (7212741911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1191472127 - 2¹⁶ = 1191406591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1191472147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595736063 + 595736064.

It is an arithmetic number, because the mean of its divisors is an integer number (595736064).

Almost surely, 2^1191472127 is an apocalyptic number.

1191472127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1191472127 is an equidigital number, since it uses as much as digits as its factorization.

1191472127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 35.

The square root of 1191472127 is about 34517.7074412540. The cubic root of 1191472127 is about 1060.1352998648.

The spelling of 1191472127 in words is "one billion, one hundred ninety-one million, four hundred seventy-two thousand, one hundred twenty-seven".