985155137293 has 2 divisors, whose sum is σ = 985155137294. Its totient is φ = 985155137292.

The previous prime is 985155137233. The next prime is 985155137333. The reversal of 985155137293 is 392731551589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717905427849 + 267249709444 = 847293^2 + 516962^2 .

It is a cyclic number.

It is not a de Polignac number, because 985155137293 - 2²¹ = 985153040141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985155137233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492577568646 + 492577568647.

It is an arithmetic number, because the mean of its divisors is an integer number (492577568647).

Almost surely, 2^985155137293 is an apocalyptic number.

It is an amenable number.

985155137293 is a deficient number, since it is larger than the sum of its proper divisors (1).

985155137293 is an equidigital number, since it uses as much as digits as its factorization.

985155137293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206000, while the sum is 58.

The spelling of 985155137293 in words is "nine hundred eighty-five billion, one hundred fifty-five million, one hundred thirty-seven thousand, two hundred ninety-three".