97206145 has 8 divisors (see below), whose sum is σ = 117132840. Its totient is φ = 77441280.

The previous prime is 97206139. The next prime is 97206157. The reversal of 97206145 is 54160279.

It can be written as a sum of positive squares in 4 ways, for example, as 6880129 + 90326016 = 2623^2 + 9504^2 .

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

It is not a de Polignac number, because 97206145 - 2¹³ = 97197953 is a prime.

It is a super-2 number, since 2×97206145² = 18898069251522050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97206145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39130 + ... + 41539.

It is an arithmetic number, because the mean of its divisors is an integer number (14641605).

Almost surely, 2^97206145 is an apocalyptic number.

It is an amenable number.

97206145 is a deficient number, since it is larger than the sum of its proper divisors (19926695).

97206145 is a wasteful number, since it uses less digits than its factorization.

97206145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80915.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 97206145 is about 9859.3176741598. The cubic root of 97206145 is about 459.7953484736.

The spelling of 97206145 in words is "ninety-seven million, two hundred six thousand, one hundred forty-five".