97543151 has 2 divisors, whose sum is σ = 97543152. Its totient is φ = 97543150.

The previous prime is 97543133. The next prime is 97543157. The reversal of 97543151 is 15134579.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97543151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97543157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48771575 + 48771576.

It is an arithmetic number, because the mean of its divisors is an integer number (48771576).

Almost surely, 2^97543151 is an apocalyptic number.

97543151 is a deficient number, since it is larger than the sum of its proper divisors (1).

97543151 is an equidigital number, since it uses as much as digits as its factorization.

97543151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 97543151 is about 9876.3936231805. The cubic root of 97543151 is about 460.3260936046.

The spelling of 97543151 in words is "ninety-seven million, five hundred forty-three thousand, one hundred fifty-one".