235172526397 has 2 divisors, whose sum is σ = 235172526398. Its totient is φ = 235172526396.

The previous prime is 235172526383. The next prime is 235172526451. The reversal of 235172526397 is 793625271532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124878131161 + 110294395236 = 353381^2 + 332106^2 .

It is a cyclic number.

It is not a de Polignac number, because 235172526397 - 2⁷ = 235172526269 is a prime.

It is a super-2 number, since 2×235172526397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235172520397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117586263198 + 117586263199.

It is an arithmetic number, because the mean of its divisors is an integer number (117586263199).

Almost surely, 2^235172526397 is an apocalyptic number.

It is an amenable number.

235172526397 is a deficient number, since it is larger than the sum of its proper divisors (1).

235172526397 is an equidigital number, since it uses as much as digits as its factorization.

235172526397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4762800, while the sum is 52.

The spelling of 235172526397 in words is "two hundred thirty-five billion, one hundred seventy-two million, five hundred twenty-six thousand, three hundred ninety-seven".