142146742 has 8 divisors (see below), whose sum is σ = 217243296. Its totient is φ = 69732312.

The previous prime is 142146737. The next prime is 142146751. The reversal of 142146742 is 247641241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×142146742² = 40411392522429128, 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 in 3 ways as a sum of consecutive naturals, for example, 670398 + ... + 670609.

It is an arithmetic number, because the mean of its divisors is an integer number (27155412).

Almost surely, 2^142146742 is an apocalyptic number.

142146742 is a deficient number, since it is larger than the sum of its proper divisors (75096554).

142146742 is a wasteful number, since it uses less digits than its factorization.

142146742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341062.

The product of its digits is 10752, while the sum is 31.

The square root of 142146742 is about 11922.5308554853. The cubic root of 142146742 is about 521.8899936027.

Adding to 142146742 its reverse (247641241), we get a palindrome (389787983).

The spelling of 142146742 in words is "one hundred forty-two million, one hundred forty-six thousand, seven hundred forty-two".