172067401 has 12 divisors (see below), whose sum is σ = 198113904. Its totient is φ = 148188600.

The previous prime is 172067377. The next prime is 172067429. The reversal of 172067401 is 104760271.

It is not a de Polignac number, because 172067401 - 2¹¹ = 172065353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172067401.

It is not an unprimeable number, because it can be changed into a prime (172067461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17695 + ... + 25636.

It is an arithmetic number, because the mean of its divisors is an integer number (16509492).

Almost surely, 2^172067401 is an apocalyptic number.

172067401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

172067401 is a deficient number, since it is larger than the sum of its proper divisors (26046503).

172067401 is a wasteful number, since it uses less digits than its factorization.

172067401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43380 (or 43361 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 172067401 is about 13117.4464359493. The cubic root of 172067401 is about 556.2024100008.

The spelling of 172067401 in words is "one hundred seventy-two million, sixty-seven thousand, four hundred one".