167751481 has 2 divisors, whose sum is σ = 167751482. Its totient is φ = 167751480.

The previous prime is 167751473. The next prime is 167751511. The reversal of 167751481 is 184157761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116985856 + 50765625 = 10816^2 + 7125^2 .

It is an emirp because it is prime and its reverse (184157761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 167751481 - 2³ = 167751473 is a prime.

It is a super-2 number, since 2×167751481² = 56281118755386722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (167751401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83875740 + 83875741.

It is an arithmetic number, because the mean of its divisors is an integer number (83875741).

Almost surely, 2^167751481 is an apocalyptic number.

It is an amenable number.

167751481 is a deficient number, since it is larger than the sum of its proper divisors (1).

167751481 is an equidigital number, since it uses as much as digits as its factorization.

167751481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 40.

The square root of 167751481 is about 12951.8910202333. The cubic root of 167751481 is about 551.5126196244.

The spelling of 167751481 in words is "one hundred sixty-seven million, seven hundred fifty-one thousand, four hundred eighty-one".