97131077 has 2 divisors, whose sum is σ = 97131078. Its totient is φ = 97131076.

The previous prime is 97131043. The next prime is 97131101. The reversal of 97131077 is 77013179.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71385601 + 25745476 = 8449^2 + 5074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97131077 is a prime.

It is a super-2 number, since 2×97131077² = 18868892238359858, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97131577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48565538 + 48565539.

It is an arithmetic number, because the mean of its divisors is an integer number (48565539).

Almost surely, 2^97131077 is an apocalyptic number.

It is an amenable number.

97131077 is a deficient number, since it is larger than the sum of its proper divisors (1).

97131077 is an equidigital number, since it uses as much as digits as its factorization.

97131077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9261, while the sum is 35.

The square root of 97131077 is about 9855.5099817310. The cubic root of 97131077 is about 459.6769581323.

The spelling of 97131077 in words is "ninety-seven million, one hundred thirty-one thousand, seventy-seven".