516142469 has 2 divisors, whose sum is σ = 516142470. Its totient is φ = 516142468.

The previous prime is 516142453. The next prime is 516142499. The reversal of 516142469 is 964241615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511890625 + 4251844 = 22625^2 + 2062^2 .

It is a cyclic number.

It is not a de Polignac number, because 516142469 - 2⁴ = 516142453 is a prime.

It is a super-2 number, since 2×516142469² = 532806096610831922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516142439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258071234 + 258071235.

It is an arithmetic number, because the mean of its divisors is an integer number (258071235).

Almost surely, 2^516142469 is an apocalyptic number.

It is an amenable number.

516142469 is a deficient number, since it is larger than the sum of its proper divisors (1).

516142469 is an equidigital number, since it uses as much as digits as its factorization.

516142469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 516142469 is about 22718.7690907760. The cubic root of 516142469 is about 802.1517432499.

The spelling of 516142469 in words is "five hundred sixteen million, one hundred forty-two thousand, four hundred sixty-nine".