97201505 has 4 divisors (see below), whose sum is σ = 116641812. Its totient is φ = 77761200.

The previous prime is 97201501. The next prime is 97201537. The reversal of 97201505 is 50510279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50510279 = 991 ⋅50969.

It can be written as a sum of positive squares in 2 ways, for example, as 50183056 + 47018449 = 7084^2 + 6857^2 .

It is not a de Polignac number, because 97201505 - 2² = 97201501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97201501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9720146 + ... + 9720155.

It is an arithmetic number, because the mean of its divisors is an integer number (29160453).

Almost surely, 2^97201505 is an apocalyptic number.

It is an amenable number.

97201505 is a deficient number, since it is larger than the sum of its proper divisors (19440307).

97201505 is a wasteful number, since it uses less digits than its factorization.

97201505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19440306.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 97201505 is about 9859.0823609502. The cubic root of 97201505 is about 459.7880324603.

The spelling of 97201505 in words is "ninety-seven million, two hundred one thousand, five hundred five".