97147551 has 8 divisors (see below), whose sum is σ = 136347520. Its totient is φ = 61356312.

The previous prime is 97147541. The next prime is 97147559. The reversal of 97147551 is 15574179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97147551 - 2⁶ = 97147487 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 (97147559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852115 + ... + 852228.

It is an arithmetic number, because the mean of its divisors is an integer number (17043440).

Almost surely, 2^97147551 is an apocalyptic number.

97147551 is a deficient number, since it is larger than the sum of its proper divisors (39199969).

97147551 is a wasteful number, since it uses less digits than its factorization.

97147551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704365.

The product of its digits is 44100, while the sum is 39.

The square root of 97147551 is about 9856.3457224267. The cubic root of 97147551 is about 459.7029446320.

The spelling of 97147551 in words is "ninety-seven million, one hundred forty-seven thousand, five hundred fifty-one".