69141257 has 2 divisors, whose sum is σ = 69141258. Its totient is φ = 69141256.

The previous prime is 69141223. The next prime is 69141263. The reversal of 69141257 is 75214196.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52649536 + 16491721 = 7256^2 + 4061^2 .

It is a cyclic number.

It is not a de Polignac number, because 69141257 - 2¹⁰ = 69140233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69141217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34570628 + 34570629.

It is an arithmetic number, because the mean of its divisors is an integer number (34570629).

Almost surely, 2^69141257 is an apocalyptic number.

It is an amenable number.

69141257 is a deficient number, since it is larger than the sum of its proper divisors (1).

69141257 is an equidigital number, since it uses as much as digits as its factorization.

69141257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 69141257 is about 8315.1221879176. The cubic root of 69141257 is about 410.4362934444.

The spelling of 69141257 in words is "sixty-nine million, one hundred forty-one thousand, two hundred fifty-seven".