1498019987 has 2 divisors, whose sum is σ = 1498019988. Its totient is φ = 1498019986.

The previous prime is 1498019959. The next prime is 1498020011. The reversal of 1498019987 is 7899108941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1498019987 - 2¹² = 1498015891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1498019587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749009993 + 749009994.

It is an arithmetic number, because the mean of its divisors is an integer number (749009994).

Almost surely, 2^1498019987 is an apocalyptic number.

1498019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1498019987 is an equidigital number, since it uses as much as digits as its factorization.

1498019987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 56.

The square root of 1498019987 is about 38704.2631631194. The cubic root of 1498019987 is about 1144.2103431974.

The spelling of 1498019987 in words is "one billion, four hundred ninety-eight million, nineteen thousand, nine hundred eighty-seven".