172060531 has 2 divisors, whose sum is σ = 172060532. Its totient is φ = 172060530.

The previous prime is 172060529. The next prime is 172060541. The reversal of 172060531 is 135060271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172060531 - 2¹ = 172060529 is a prime.

It is a super-2 number, since 2×172060531² = 59209652656003922, which contains 22 as substring.

Together with 172060529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 172060496 and 172060505.

It is not a weakly prime, because it can be changed into another prime (172060541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86030265 + 86030266.

It is an arithmetic number, because the mean of its divisors is an integer number (86030266).

Almost surely, 2^172060531 is an apocalyptic number.

172060531 is a deficient number, since it is larger than the sum of its proper divisors (1).

172060531 is an equidigital number, since it uses as much as digits as its factorization.

172060531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 172060531 is about 13117.1845683439. The cubic root of 172060531 is about 556.1950075500.

The spelling of 172060531 in words is "one hundred seventy-two million, sixty thousand, five hundred thirty-one".