142406972 has 24 divisors (see below), whose sum is σ = 257517792. Its totient is φ = 68868800.

The previous prime is 142406951. The next prime is 142406983. The reversal of 142406972 is 279604241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10322 + ... + 19782.

It is an arithmetic number, because the mean of its divisors is an integer number (10729908).

Almost surely, 2^142406972 is an apocalyptic number.

It is an amenable number.

142406972 is a deficient number, since it is larger than the sum of its proper divisors (115110820).

142406972 is a wasteful number, since it uses less digits than its factorization.

142406972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9589 (or 9587 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 142406972 is about 11933.4392360292. The cubic root of 142406972 is about 522.2082765218.

It can be divided in two parts, 14240 and 6972, that added together give a palindrome (21212).

The spelling of 142406972 in words is "one hundred forty-two million, four hundred six thousand, nine hundred seventy-two".