97111501 has 4 divisors (see below), whose sum is σ = 99369952. Its totient is φ = 94853052.

The previous prime is 97111477. The next prime is 97111507. The reversal of 97111501 is 10511179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10511179 = 7 ⋅1501597.

It is a cyclic number.

It is not a de Polignac number, because 97111501 - 2¹⁹ = 96587213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97111507) 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, 1129161 + ... + 1129246.

It is an arithmetic number, because the mean of its divisors is an integer number (24842488).

Almost surely, 2^97111501 is an apocalyptic number.

It is an amenable number.

97111501 is a deficient number, since it is larger than the sum of its proper divisors (2258451).

97111501 is a wasteful number, since it uses less digits than its factorization.

97111501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258450.

The product of its (nonzero) digits is 315, while the sum is 25.

The square root of 97111501 is about 9854.5167816591. The cubic root of 97111501 is about 459.6460746395.

The spelling of 97111501 in words is "ninety-seven million, one hundred eleven thousand, five hundred one".