1152019987 has 2 divisors, whose sum is σ = 1152019988. Its totient is φ = 1152019986.

The previous prime is 1152019937. The next prime is 1152020053. The reversal of 1152019987 is 7899102511.

It is a weak prime.

It is an emirp because it is prime and its reverse (7899102511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1152019987 - 2⁷ = 1152019859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1152019937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576009993 + 576009994.

It is an arithmetic number, because the mean of its divisors is an integer number (576009994).

Almost surely, 2^1152019987 is an apocalyptic number.

1152019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152019987 is an equidigital number, since it uses as much as digits as its factorization.

1152019987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 43.

The square root of 1152019987 is about 33941.4199319946. The cubic root of 1152019987 is about 1048.3026202363.

The spelling of 1152019987 in words is "one billion, one hundred fifty-two million, nineteen thousand, nine hundred eighty-seven".