172103005451 has 12 divisors (see below), whose sum is σ = 197322418872. Its totient is φ = 149519350656.

The previous prime is 172103005447. The next prime is 172103005457. The reversal of 172103005451 is 154500301271.

It is not a de Polignac number, because 172103005451 - 2² = 172103005447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172103005457) 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, 29948921 + ... + 29954666.

It is an arithmetic number, because the mean of its divisors is an integer number (16443534906).

Almost surely, 2^172103005451 is an apocalyptic number.

172103005451 is a deficient number, since it is larger than the sum of its proper divisors (25219413421).

172103005451 is a wasteful number, since it uses less digits than its factorization.

172103005451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59903630 (or 59903617 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 172103005451 in words is "one hundred seventy-two billion, one hundred three million, five thousand, four hundred fifty-one".