999992153 has 2 divisors, whose sum is σ = 999992154. Its totient is φ = 999992152.

The previous prime is 999992131. The next prime is 999992177. The reversal of 999992153 is 351299999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 550043209 + 449948944 = 23453^2 + 21212^2 .

It is a cyclic number.

It is not a de Polignac number, because 999992153 - 2²² = 995797849 is a prime.

It is not a weakly prime, because it can be changed into another prime (999992753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499996076 + 499996077.

It is an arithmetic number, because the mean of its divisors is an integer number (499996077).

Almost surely, 2^999992153 is an apocalyptic number.

It is an amenable number.

999992153 is a deficient number, since it is larger than the sum of its proper divisors (1).

999992153 is an equidigital number, since it uses as much as digits as its factorization.

999992153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1771470, while the sum is 56.

The square root of 999992153 is about 31622.6525294764. The cubic root of 999992153 is about 999.9973843265.

The spelling of 999992153 in words is "nine hundred ninety-nine million, nine hundred ninety-two thousand, one hundred fifty-three".