993494153 has 2 divisors, whose sum is σ = 993494154. Its totient is φ = 993494152.

The previous prime is 993494137. The next prime is 993494171. The reversal of 993494153 is 351494399.

It is a happy number.

993494153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 739187344 + 254306809 = 27188^2 + 15947^2 .

It is a cyclic number.

It is not a de Polignac number, because 993494153 - 2⁴ = 993494137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 993494098 and 993494107.

It is not a weakly prime, because it can be changed into another prime (993494053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496747076 + 496747077.

It is an arithmetic number, because the mean of its divisors is an integer number (496747077).

Almost surely, 2^993494153 is an apocalyptic number.

It is an amenable number.

993494153 is a deficient number, since it is larger than the sum of its proper divisors (1).

993494153 is an equidigital number, since it uses as much as digits as its factorization.

993494153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 47.

The square root of 993494153 is about 31519.7422736925. The cubic root of 993494153 is about 997.8266643674.

The spelling of 993494153 in words is "nine hundred ninety-three million, four hundred ninety-four thousand, one hundred fifty-three".