142406477 has 4 divisors (see below), whose sum is σ = 143002560. Its totient is φ = 141810396.

The previous prime is 142406441. The next prime is 142406479. The reversal of 142406477 is 774604241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142406477 - 2¹⁴ = 142390093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142406479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297683 + ... + 298160.

It is an arithmetic number, because the mean of its divisors is an integer number (35750640).

Almost surely, 2^142406477 is an apocalyptic number.

It is an amenable number.

142406477 is a deficient number, since it is larger than the sum of its proper divisors (596083).

142406477 is an equidigital number, since it uses as much as digits as its factorization.

142406477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596082.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 142406477 is about 11933.4184959717. The cubic root of 142406477 is about 522.2076714639.

The spelling of 142406477 in words is "one hundred forty-two million, four hundred six thousand, four hundred seventy-seven".