1161877487 has 2 divisors, whose sum is σ = 1161877488. Its totient is φ = 1161877486.

The previous prime is 1161877477. The next prime is 1161877511. The reversal of 1161877487 is 7847781611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161877487 - 2⁴ = 1161877471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161877447) 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 as a sum of consecutive naturals, namely, 580938743 + 580938744.

It is an arithmetic number, because the mean of its divisors is an integer number (580938744).

Almost surely, 2^1161877487 is an apocalyptic number.

1161877487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161877487 is an equidigital number, since it uses as much as digits as its factorization.

1161877487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 526848, while the sum is 50.

The square root of 1161877487 is about 34086.3240464559. The cubic root of 1161877487 is about 1051.2841392259.

The spelling of 1161877487 in words is "one billion, one hundred sixty-one million, eight hundred seventy-seven thousand, four hundred eighty-seven".