97202251 has 4 divisors (see below), whose sum is σ = 99270432. Its totient is φ = 95134072.

The previous prime is 97202239. The next prime is 97202257. The reversal of 97202251 is 15220279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15220279 = 1429 ⋅10651.

It is a cyclic number.

It is not a de Polignac number, because 97202251 - 2⁷ = 97202123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97202257) 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 3 ways as a sum of consecutive naturals, for example, 1034020 + ... + 1034113.

It is an arithmetic number, because the mean of its divisors is an integer number (24817608).

Almost surely, 2^97202251 is an apocalyptic number.

97202251 is a deficient number, since it is larger than the sum of its proper divisors (2068181).

97202251 is a wasteful number, since it uses less digits than its factorization.

97202251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068180.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 97202251 is about 9859.1201940133. The cubic root of 97202251 is about 459.7892087144.

The spelling of 97202251 in words is "ninety-seven million, two hundred two thousand, two hundred fifty-one".