172630151 has 2 divisors, whose sum is σ = 172630152. Its totient is φ = 172630150.

The previous prime is 172630093. The next prime is 172630153. The reversal of 172630151 is 151036271.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172630151 is a prime.

Together with 172630153, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172630151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172630153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86315075 + 86315076.

It is an arithmetic number, because the mean of its divisors is an integer number (86315076).

Almost surely, 2^172630151 is an apocalyptic number.

172630151 is a deficient number, since it is larger than the sum of its proper divisors (1).

172630151 is an equidigital number, since it uses as much as digits as its factorization.

172630151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 172630151 is about 13138.8793662169. The cubic root of 172630151 is about 556.8081073333.

The spelling of 172630151 in words is "one hundred seventy-two million, six hundred thirty thousand, one hundred fifty-one".