142554406 has 4 divisors (see below), whose sum is σ = 213831612. Its totient is φ = 71277202.

The previous prime is 142554403. The next prime is 142554427. The reversal of 142554406 is 604455241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604455241 = 13 ⋅46496557.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142554403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35638600 + ... + 35638603.

It is an arithmetic number, because the mean of its divisors is an integer number (53457903).

Almost surely, 2^142554406 is an apocalyptic number.

142554406 is a deficient number, since it is larger than the sum of its proper divisors (71277206).

142554406 is an equidigital number, since it uses as much as digits as its factorization.

142554406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71277205.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 142554406 is about 11939.6149854172. The cubic root of 142554406 is about 522.3884285175.

The spelling of 142554406 in words is "one hundred forty-two million, five hundred fifty-four thousand, four hundred six".