1161828487 has 2 divisors, whose sum is σ = 1161828488. Its totient is φ = 1161828486.

The previous prime is 1161828401. The next prime is 1161828491. The reversal of 1161828487 is 7848281611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1161828487 - 2²³ = 1153439879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161826487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580914243 + 580914244.

It is an arithmetic number, because the mean of its divisors is an integer number (580914244).

Almost surely, 2^1161828487 is an apocalyptic number.

1161828487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161828487 is an equidigital number, since it uses as much as digits as its factorization.

1161828487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 46.

The square root of 1161828487 is about 34085.6052755412. The cubic root of 1161828487 is about 1051.2693603737.

The spelling of 1161828487 in words is "one billion, one hundred sixty-one million, eight hundred twenty-eight thousand, four hundred eighty-seven".