97144231 has 2 divisors, whose sum is σ = 97144232. Its totient is φ = 97144230.

The previous prime is 97144217. The next prime is 97144241. The reversal of 97144231 is 13244179.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97144231 - 2⁵ = 97144199 is a prime.

It is a super-2 number, since 2×97144231² = 18874003233162722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 97144193 and 97144202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97144241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48572115 + 48572116.

It is an arithmetic number, because the mean of its divisors is an integer number (48572116).

Almost surely, 2^97144231 is an apocalyptic number.

97144231 is a deficient number, since it is larger than the sum of its proper divisors (1).

97144231 is an equidigital number, since it uses as much as digits as its factorization.

97144231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 97144231 is about 9856.1773015708. The cubic root of 97144231 is about 459.6977078173.

The spelling of 97144231 in words is "ninety-seven million, one hundred forty-four thousand, two hundred thirty-one".