988357157 has 2 divisors, whose sum is σ = 988357158. Its totient is φ = 988357156.

The previous prime is 988357151. The next prime is 988357171. The reversal of 988357157 is 751753889.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 966836836 + 21520321 = 31094^2 + 4639^2 .

It is a cyclic number.

It is not a de Polignac number, because 988357157 - 2¹⁰ = 988356133 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 988357099 and 988357108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988357151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494178578 + 494178579.

It is an arithmetic number, because the mean of its divisors is an integer number (494178579).

Almost surely, 2^988357157 is an apocalyptic number.

It is an amenable number.

988357157 is a deficient number, since it is larger than the sum of its proper divisors (1).

988357157 is an equidigital number, since it uses as much as digits as its factorization.

988357157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 53.

The square root of 988357157 is about 31438.1481165796. The cubic root of 988357157 is about 996.1038923927.

The spelling of 988357157 in words is "nine hundred eighty-eight million, three hundred fifty-seven thousand, one hundred fifty-seven".