142472775 has 12 divisors (see below), whose sum is σ = 235555112. Its totient is φ = 75985440.

The previous prime is 142472731. The next prime is 142472777. The reversal of 142472775 is 577274241.

It is not a de Polignac number, because 142472775 - 2⁶ = 142472711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142472777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949744 + ... + 949893.

Almost surely, 2^142472775 is an apocalyptic number.

142472775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142472775 is a deficient number, since it is larger than the sum of its proper divisors (93082337).

142472775 is a wasteful number, since it uses less digits than its factorization.

142472775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899650 (or 1899645 counting only the distinct ones).

The product of its digits is 109760, while the sum is 39.

The square root of 142472775 is about 11936.1960020770. The cubic root of 142472775 is about 522.2886976307.

The spelling of 142472775 in words is "one hundred forty-two million, four hundred seventy-two thousand, seven hundred seventy-five".