168462457 has 2 divisors, whose sum is σ = 168462458. Its totient is φ = 168462456.

The previous prime is 168462431. The next prime is 168462491. The reversal of 168462457 is 754264861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152374336 + 16088121 = 12344^2 + 4011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168462457 is a prime.

It is not a weakly prime, because it can be changed into another prime (168462407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84231228 + 84231229.

It is an arithmetic number, because the mean of its divisors is an integer number (84231229).

Almost surely, 2^168462457 is an apocalyptic number.

It is an amenable number.

168462457 is a deficient number, since it is larger than the sum of its proper divisors (1).

168462457 is an equidigital number, since it uses as much as digits as its factorization.

168462457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The square root of 168462457 is about 12979.3088028600. The cubic root of 168462457 is about 552.2906745095.

The spelling of 168462457 in words is "one hundred sixty-eight million, four hundred sixty-two thousand, four hundred fifty-seven".