10172142 has 20 divisors (see below), whose sum is σ = 22793496. Its totient is φ = 3390660.

The previous prime is 10172093. The next prime is 10172143. The reversal of 10172142 is 24127101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10172143) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31234 + ... + 31557.

Almost surely, 2^10172142 is an apocalyptic number.

10172142 is an abundant number, since it is smaller than the sum of its proper divisors (12621354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10172142 is an equidigital number, since it uses as much as digits as its factorization.

10172142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62805 (or 62796 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 10172142 is about 3189.3795634888. The cubic root of 10172142 is about 216.6726714970.

Adding to 10172142 its reverse (24127101), we get a palindrome (34299243).

The spelling of 10172142 in words is "ten million, one hundred seventy-two thousand, one hundred forty-two".