97180149 has 16 divisors (see below), whose sum is σ = 142655040. Its totient is φ = 58354560.

The previous prime is 97180147. The next prime is 97180157. The reversal of 97180149 is 94108179.

It is a happy number.

It is not a de Polignac number, because 97180149 - 2¹ = 97180147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97180147) 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, 9912 + ... + 17105.

It is an arithmetic number, because the mean of its divisors is an integer number (8915940).

Almost surely, 2^97180149 is an apocalyptic number.

It is an amenable number.

97180149 is a deficient number, since it is larger than the sum of its proper divisors (45474891).

97180149 is a wasteful number, since it uses less digits than its factorization.

97180149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27140.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 97180149 is about 9857.9992391966. Note that the first 3 decimals coincide. The cubic root of 97180149 is about 459.7543568760.

The spelling of 97180149 in words is "ninety-seven million, one hundred eighty thousand, one hundred forty-nine".