97015951 has 2 divisors, whose sum is σ = 97015952. Its totient is φ = 97015950.

The previous prime is 97015949. The next prime is 97015979. The reversal of 97015951 is 15951079.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15951079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97015951 - 2¹ = 97015949 is a prime.

Together with 97015949, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 97015951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97015921) 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 as a sum of consecutive naturals, namely, 48507975 + 48507976.

It is an arithmetic number, because the mean of its divisors is an integer number (48507976).

Almost surely, 2^97015951 is an apocalyptic number.

97015951 is a deficient number, since it is larger than the sum of its proper divisors (1).

97015951 is an equidigital number, since it uses as much as digits as its factorization.

97015951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 97015951 is about 9849.6675578417. The cubic root of 97015951 is about 459.4952734327.

The spelling of 97015951 in words is "ninety-seven million, fifteen thousand, nine hundred fifty-one".