97148785969 has 3 divisors (see below), whose sum is σ = 97149097657. Its totient is φ = 97148474282.

The previous prime is 97148785961. The next prime is 97148786023. The reversal of 97148785969 is 96958784179.

The square root of 97148785969 is 311687.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 97148785969 - 2³ = 97148785961 is a prime.

It is a super-2 number, since 2×97148785969² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97148785961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 155844 + ... + 467530.

Almost surely, 2^97148785969 is an apocalyptic number.

97148785969 is the 311687-th square number.

97148785969 is the 155844-th centered octagonal number.

It is an amenable number.

97148785969 is a deficient number, since it is larger than the sum of its proper divisors (311688).

97148785969 is an frugal number, since it uses more digits than its factorization.

97148785969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623374 (or 311687 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 73.

The spelling of 97148785969 in words is "ninety-seven billion, one hundred forty-eight million, seven hundred eighty-five thousand, nine hundred sixty-nine".