167551 has 4 divisors (see below), whose sum is σ = 168912. Its totient is φ = 166192.

The previous prime is 167543. The next prime is 167593. The reversal of 167551 is 155761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155761 = 109 ⋅1429.

It is a cyclic number.

It is not a de Polignac number, because 167551 - 2³ = 167543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475 + ... + 748.

It is an arithmetic number, because the mean of its divisors is an integer number (42228).

2¹⁶⁷⁵⁵¹ is an apocalyptic number.

167551 is a deficient number, since it is larger than the sum of its proper divisors (1361).

167551 is a wasteful number, since it uses less digits than its factorization.

167551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360.

The product of its digits is 1050, while the sum is 25.

The square root of 167551 is about 409.3299402682. The cubic root of 167551 is about 55.1292826478.

The spelling of 167551 in words is "one hundred sixty-seven thousand, five hundred fifty-one".