172390153 has 8 divisors (see below), whose sum is σ = 188798400. Its totient is φ = 156431568.

The previous prime is 172390151. The next prime is 172390159. The reversal of 172390153 is 351093271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172390153 - 2¹ = 172390151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172390151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111613 + ... + 113146.

It is an arithmetic number, because the mean of its divisors is an integer number (23599800).

Almost surely, 2^172390153 is an apocalyptic number.

172390153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

172390153 is a deficient number, since it is larger than the sum of its proper divisors (16408247).

172390153 is a wasteful number, since it uses less digits than its factorization.

172390153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224831.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 172390153 is about 13129.7430667930. The cubic root of 172390153 is about 556.5499546552.

The spelling of 172390153 in words is "one hundred seventy-two million, three hundred ninety thousand, one hundred fifty-three".