142967172 has 96 divisors (see below), whose sum is σ = 370944000. Its totient is φ = 42653952.

The previous prime is 142967147. The next prime is 142967173. The reversal of 142967172 is 271769241.

It is a super-2 number, since 2×142967172² = 40879224539355168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142967172.

It is not an unprimeable number, because it can be changed into a prime (142967173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 718329 + ... + 718527.

It is an arithmetic number, because the mean of its divisors is an integer number (3864000).

Almost surely, 2^142967172 is an apocalyptic number.

142967172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142967172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185472000).

142967172 is an abundant number, since it is smaller than the sum of its proper divisors (227976828).

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

142967172 is a wasteful number, since it uses less digits than its factorization.

142967172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 383 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 142967172 is about 11956.8880566810. Note that the first 3 decimals coincide. The cubic root of 142967172 is about 522.8921342233.

The spelling of 142967172 in words is "one hundred forty-two million, nine hundred sixty-seven thousand, one hundred seventy-two".