172081054 has 4 divisors (see below), whose sum is σ = 258121584. Its totient is φ = 86040526.

The previous prime is 172081037. The next prime is 172081079. The reversal of 172081054 is 450180271.

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

It is a super-2 number, since 2×172081054² = 59223778291501832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43020262 + ... + 43020265.

It is an arithmetic number, because the mean of its divisors is an integer number (64530396).

Almost surely, 2^172081054 is an apocalyptic number.

172081054 is a deficient number, since it is larger than the sum of its proper divisors (86040530).

172081054 is an equidigital number, since it uses as much as digits as its factorization.

172081054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86040529.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 172081054 is about 13117.9668394153. The cubic root of 172081054 is about 556.2171205748.

The spelling of 172081054 in words is "one hundred seventy-two million, eighty-one thousand, fifty-four".