172142367 has 4 divisors (see below), whose sum is σ = 229523160. Its totient is φ = 114761576.

The previous prime is 172142359. The next prime is 172142371. The reversal of 172142367 is 763241271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 172142367 - 2³ = 172142359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172142387) 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, 28690392 + ... + 28690397.

It is an arithmetic number, because the mean of its divisors is an integer number (57380790).

Almost surely, 2^172142367 is an apocalyptic number.

172142367 is a deficient number, since it is larger than the sum of its proper divisors (57380793).

172142367 is an equidigital number, since it uses as much as digits as its factorization.

172142367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57380792.

The product of its digits is 14112, while the sum is 33.

The square root of 172142367 is about 13120.3036169137. The cubic root of 172142367 is about 556.2831733446.

The spelling of 172142367 in words is "one hundred seventy-two million, one hundred forty-two thousand, three hundred sixty-seven".