97198138 has 8 divisors (see below), whose sum is σ = 152136288. Its totient is φ = 46486044.

The previous prime is 97198121. The next prime is 97198141. The reversal of 97198138 is 83189179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 2113003 = 97198138 / (9 + 7 + 1 + 9 + 8 + 1 + 3 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056456 + ... + 1056547.

It is an arithmetic number, because the mean of its divisors is an integer number (19017036).

Almost surely, 2^97198138 is an apocalyptic number.

97198138 is a deficient number, since it is larger than the sum of its proper divisors (54938150).

97198138 is a wasteful number, since it uses less digits than its factorization.

97198138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113028.

The product of its digits is 108864, while the sum is 46.

The square root of 97198138 is about 9858.9116032146. The cubic root of 97198138 is about 459.7827234747.

It can be divided in two parts, 97198 and 138, that added together give a cube (97336 = 46³).

The spelling of 97198138 in words is "ninety-seven million, one hundred ninety-eight thousand, one hundred thirty-eight".