403142317 has 2 divisors, whose sum is σ = 403142318. Its totient is φ = 403142316.

The previous prime is 403142291. The next prime is 403142347. The reversal of 403142317 is 713241304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398840841 + 4301476 = 19971^2 + 2074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403142317 is a prime.

It is a super-2 number, since 2×403142317² = 325047455512256978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 403142291 and 403142300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403142347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201571158 + 201571159.

It is an arithmetic number, because the mean of its divisors is an integer number (201571159).

Almost surely, 2^403142317 is an apocalyptic number.

It is an amenable number.

403142317 is a deficient number, since it is larger than the sum of its proper divisors (1).

403142317 is an equidigital number, since it uses as much as digits as its factorization.

403142317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 403142317 is about 20078.4042443617. The cubic root of 403142317 is about 738.7306684779.

The spelling of 403142317 in words is "four hundred three million, one hundred forty-two thousand, three hundred seventeen".