97785151 has 2 divisors, whose sum is σ = 97785152. Its totient is φ = 97785150.

The previous prime is 97785133. The next prime is 97785169. The reversal of 97785151 is 15158779.

It is a balanced prime because it is at equal distance from previous prime (97785133) and next prime (97785169).

It is a cyclic number.

It is not a de Polignac number, because 97785151 - 2⁵ = 97785119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97785098 and 97785107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97785131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48892575 + 48892576.

It is an arithmetic number, because the mean of its divisors is an integer number (48892576).

Almost surely, 2^97785151 is an apocalyptic number.

97785151 is a deficient number, since it is larger than the sum of its proper divisors (1).

97785151 is an equidigital number, since it uses as much as digits as its factorization.

97785151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 43.

The square root of 97785151 is about 9888.6374693382. The cubic root of 97785151 is about 460.7064617293.

The spelling of 97785151 in words is "ninety-seven million, seven hundred eighty-five thousand, one hundred fifty-one".