997471153 has 16 divisors (see below), whose sum is σ = 1230554880. Its totient is φ = 789598656.

The previous prime is 997471109. The next prime is 997471171. The reversal of 997471153 is 351174799.

It is a de Polignac number, because none of the positive numbers 2^k-997471153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997411153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102150 + ... + 111487.

It is an arithmetic number, because the mean of its divisors is an integer number (76909680).

Almost surely, 2^997471153 is an apocalyptic number.

It is an amenable number.

997471153 is a deficient number, since it is larger than the sum of its proper divisors (233083727).

997471153 is a wasteful number, since it uses less digits than its factorization.

997471153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213696.

The product of its digits is 238140, while the sum is 46.

The square root of 997471153 is about 31582.7667090773. The cubic root of 997471153 is about 999.1563394370.

The spelling of 997471153 in words is "nine hundred ninety-seven million, four hundred seventy-one thousand, one hundred fifty-three".