980137993 has 2 divisors, whose sum is σ = 980137994. Its totient is φ = 980137992.

The previous prime is 980137927. The next prime is 980137997. The reversal of 980137993 is 399731089.

980137993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490489609 + 489648384 = 22147^2 + 22128^2 .

It is a cyclic number.

It is not a de Polignac number, because 980137993 - 2²¹ = 978040841 is a prime.

It is not a weakly prime, because it can be changed into another prime (980137997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490068996 + 490068997.

It is an arithmetic number, because the mean of its divisors is an integer number (490068997).

Almost surely, 2^980137993 is an apocalyptic number.

It is an amenable number.

980137993 is a deficient number, since it is larger than the sum of its proper divisors (1).

980137993 is an equidigital number, since it uses as much as digits as its factorization.

980137993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 980137993 is about 31307.1556197621. The cubic root of 980137993 is about 993.3350075669.

The spelling of 980137993 in words is "nine hundred eighty million, one hundred thirty-seven thousand, nine hundred ninety-three".