172051070 has 16 divisors (see below), whose sum is σ = 309907728. Its totient is φ = 68772480.

The previous prime is 172051069. The next prime is 172051079. The reversal of 172051070 is 70150271.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172051079) 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, 11510 + ... + 21830.

It is an arithmetic number, because the mean of its divisors is an integer number (19369233).

Almost surely, 2^172051070 is an apocalyptic number.

172051070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172051070 is a deficient number, since it is larger than the sum of its proper divisors (137856658).

172051070 is a wasteful number, since it uses less digits than its factorization.

172051070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11995.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 172051070 is about 13116.8239295952. The cubic root of 172051070 is about 556.1848129645.

The spelling of 172051070 in words is "one hundred seventy-two million, fifty-one thousand, seventy".