97542145 has 4 divisors (see below), whose sum is σ = 117050580. Its totient is φ = 78033712.

The previous prime is 97542121. The next prime is 97542161. The reversal of 97542145 is 54124579.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21224449 + 76317696 = 4607^2 + 8736^2 .

It is a cyclic number.

It is not a de Polignac number, because 97542145 - 2²⁵ = 63987713 is a prime.

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, 9754210 + ... + 9754219.

It is an arithmetic number, because the mean of its divisors is an integer number (29262645).

Almost surely, 2^97542145 is an apocalyptic number.

It is an amenable number.

97542145 is a deficient number, since it is larger than the sum of its proper divisors (19508435).

97542145 is a wasteful number, since it uses less digits than its factorization.

97542145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19508434.

The product of its digits is 50400, while the sum is 37.

The square root of 97542145 is about 9876.3426935278. The cubic root of 97542145 is about 460.3245110925.

The spelling of 97542145 in words is "ninety-seven million, five hundred forty-two thousand, one hundred forty-five".