998152613 has 2 divisors, whose sum is σ = 998152614. Its totient is φ = 998152612.

The previous prime is 998152607. The next prime is 998152633. The reversal of 998152613 is 316251899.

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., 862127044 + 136025569 = 29362^2 + 11663^2 .

It is a cyclic number.

It is not a de Polignac number, because 998152613 - 2⁸ = 998152357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998152633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499076306 + 499076307.

It is an arithmetic number, because the mean of its divisors is an integer number (499076307).

Almost surely, 2^998152613 is an apocalyptic number.

It is an amenable number.

998152613 is a deficient number, since it is larger than the sum of its proper divisors (1).

998152613 is an equidigital number, since it uses as much as digits as its factorization.

998152613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 44.

The square root of 998152613 is about 31593.5533455799. The cubic root of 998152613 is about 999.3838247394.

The spelling of 998152613 in words is "nine hundred ninety-eight million, one hundred fifty-two thousand, six hundred thirteen".