167725541 has 2 divisors, whose sum is σ = 167725542. Its totient is φ = 167725540.

The previous prime is 167725529. The next prime is 167725543. The reversal of 167725541 is 145527761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137968516 + 29757025 = 11746^2 + 5455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167725541 is a prime.

Together with 167725543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 167725495 and 167725504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167725543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83862770 + 83862771.

It is an arithmetic number, because the mean of its divisors is an integer number (83862771).

Almost surely, 2^167725541 is an apocalyptic number.

It is an amenable number.

167725541 is a deficient number, since it is larger than the sum of its proper divisors (1).

167725541 is an equidigital number, since it uses as much as digits as its factorization.

167725541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 38.

The square root of 167725541 is about 12950.8895833452. The cubic root of 167725541 is about 551.4841907153.

The spelling of 167725541 in words is "one hundred sixty-seven million, seven hundred twenty-five thousand, five hundred forty-one".