142155412 has 12 divisors (see below), whose sum is σ = 284310880. Its totient is φ = 60923736.

The previous prime is 142155407. The next prime is 142155413. The reversal of 142155412 is 214551241.

142155412 is an admirable number.

It is a super-2 number, since 2×142155412² = 40416322321779488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142155413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2538462 + ... + 2538517.

Almost surely, 2^142155412 is an apocalyptic number.

It is an amenable number.

142155412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142155412 is a wasteful number, since it uses less digits than its factorization.

142155412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076990 (or 5076988 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 142155412 is about 11922.8944472389. The cubic root of 142155412 is about 521.9006039860.

The spelling of 142155412 in words is "one hundred forty-two million, one hundred fifty-five thousand, four hundred twelve".