142406506 has 16 divisors (see below), whose sum is σ = 235981440. Its totient is φ = 63910080.

The previous prime is 142406479. The next prime is 142406567. The reversal of 142406506 is 605604241.

It is a super-2 number, since 2×142406506² = 40559225902256072, which contains 22 as substring.

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, 39231 + ... + 42706.

It is an arithmetic number, because the mean of its divisors is an integer number (14748840).

Almost surely, 2^142406506 is an apocalyptic number.

142406506 is a deficient number, since it is larger than the sum of its proper divisors (93574934).

142406506 is a wasteful number, since it uses less digits than its factorization.

142406506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82029.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 142406506 is about 11933.4197110468. The cubic root of 142406506 is about 522.2077069117.

The spelling of 142406506 in words is "one hundred forty-two million, four hundred six thousand, five hundred six".