142013412 has 30 divisors (see below), whose sum is σ = 371251958. Its totient is φ = 47337696.

The previous prime is 142013407. The next prime is 142013423. The reversal of 142013412 is 214310241.

It can be written as a sum of positive squares in only one way, i.e., 78428736 + 63584676 = 8856^2 + 7974^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 218833 + ... + 219480.

Almost surely, 2^142013412 is an apocalyptic number.

142013412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142013412 is an abundant number, since it is smaller than the sum of its proper divisors (229238546).

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

142013412 is a wasteful number, since it uses less digits than its factorization.

142013412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438329 (or 438318 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 142013412 is about 11916.9380295443. The cubic root of 142013412 is about 521.7267694137.

Adding to 142013412 its reverse (214310241), we get a palindrome (356323653).

The spelling of 142013412 in words is "one hundred forty-two million, thirteen thousand, four hundred twelve".