97751261 has 4 divisors (see below), whose sum is σ = 97878492. Its totient is φ = 97624032.

The previous prime is 97751233. The next prime is 97751267. The reversal of 97751261 is 16215779.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14485636 + 83265625 = 3806^2 + 9125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97751261 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 (97751267) 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, 62456 + ... + 64001.

It is an arithmetic number, because the mean of its divisors is an integer number (24469623).

Almost surely, 2^97751261 is an apocalyptic number.

It is an amenable number.

97751261 is a deficient number, since it is larger than the sum of its proper divisors (127231).

97751261 is a wasteful number, since it uses less digits than its factorization.

97751261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127230.

The product of its digits is 26460, while the sum is 38.

The square root of 97751261 is about 9886.9237379480. The cubic root of 97751261 is about 460.6532322907.

The spelling of 97751261 in words is "ninety-seven million, seven hundred fifty-one thousand, two hundred sixty-one".