980131987 has 2 divisors, whose sum is σ = 980131988. Its totient is φ = 980131986.

The previous prime is 980131969. The next prime is 980132009. The reversal of 980131987 is 789131089.

980131987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 980131987 - 2²³ = 971743379 is a prime.

It is a Chen prime.

It is equal to p_49888009 and since 980131987 and 49888009 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (980135987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490065993 + 490065994.

It is an arithmetic number, because the mean of its divisors is an integer number (490065994).

Almost surely, 2^980131987 is an apocalyptic number.

980131987 is a deficient number, since it is larger than the sum of its proper divisors (1).

980131987 is an equidigital number, since it uses as much as digits as its factorization.

980131987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 980131987 is about 31307.0596990519. The cubic root of 980131987 is about 993.3329786069.

It can be divided in two parts, 98013 and 1987, that added together give a 5-th power (100000 = 10⁵).

The spelling of 980131987 in words is "nine hundred eighty million, one hundred thirty-one thousand, nine hundred eighty-seven".