97996145 has 16 divisors (see below), whose sum is σ = 126855120. Its totient is φ = 72244224.

The previous prime is 97996141. The next prime is 97996147. The reversal of 97996145 is 54169979.

It can be written as a sum of positive squares in 8 ways, for example, as 4892944 + 93103201 = 2212^2 + 9649^2 .

It is not a de Polignac number, because 97996145 - 2² = 97996141 is a prime.

It is a super-2 number, since 2×97996145² = 19206488869722050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97996093 and 97996102.

It is not an unprimeable number, because it can be changed into a prime (97996141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60101 + ... + 61709.

It is an arithmetic number, because the mean of its divisors is an integer number (7928445).

Almost surely, 2^97996145 is an apocalyptic number.

It is an amenable number.

97996145 is a deficient number, since it is larger than the sum of its proper divisors (28858975).

97996145 is a wasteful number, since it uses less digits than its factorization.

97996145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564.

The product of its digits is 612360, while the sum is 50.

The square root of 97996145 is about 9899.3002277939. The cubic root of 97996145 is about 461.0375838096.

The spelling of 97996145 in words is "ninety-seven million, nine hundred ninety-six thousand, one hundred forty-five".