97149556 has 36 divisors (see below), whose sum is σ = 202385568. Its totient is φ = 40663728.

The previous prime is 97149551. The next prime is 97149571. The reversal of 97149556 is 65594179.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97149551) 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 11 ways as a sum of consecutive naturals, for example, 2665 + ... + 14191.

Almost surely, 2^97149556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97149556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101192784).

97149556 is an abundant number, since it is smaller than the sum of its proper divisors (105236012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97149556 is a wasteful number, since it uses less digits than its factorization.

97149556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11588 (or 11579 counting only the distinct ones).

The product of its digits is 340200, while the sum is 46.

The square root of 97149556 is about 9856.4474330258. The cubic root of 97149556 is about 459.7061071686.

The spelling of 97149556 in words is "ninety-seven million, one hundred forty-nine thousand, five hundred fifty-six".