97555129 has 27 divisors (see below), whose sum is σ = 122020527. Its totient is φ = 77751744.

The previous prime is 97555123. The next prime is 97555147. The reversal of 97555129 is 92155579.

It is a happy number.

The square root of 97555129 is 9877.

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

It can be written as a sum of positive squares in only one way, i.e., 75951225 + 21603904 = 8715^2 + 4648^2 .

It is not a de Polignac number, because 97555129 - 2¹⁵ = 97522361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97555123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1175322 + ... + 1175404.

Almost surely, 2^97555129 is an apocalyptic number.

97555129 is the 9877-th square number.

97555129 is the 4939-th centered octagonal number.

It is an amenable number.

97555129 is a deficient number, since it is larger than the sum of its proper divisors (24465398).

97555129 is an equidigital number, since it uses as much as digits as its factorization.

97555129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 107 counting only the distinct ones).

The product of its digits is 141750, while the sum is 43.

The cubic root of 97555129 is about 460.3449350446.

It can be divided in two parts, 9755 and 5129, that added together give a square (14884 = 122²).

The spelling of 97555129 in words is "ninety-seven million, five hundred fifty-five thousand, one hundred twenty-nine".