142666051 has 16 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 123440800.

The previous prime is 142666049. The next prime is 142666093. The reversal of 142666051 is 150666241.

It is a cyclic number.

It is not a de Polignac number, because 142666051 - 2¹ = 142666049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142666151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19500 + ... + 25798.

It is an arithmetic number, because the mean of its divisors is an integer number (10206000).

Almost surely, 2^142666051 is an apocalyptic number.

142666051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142666051 is a deficient number, since it is larger than the sum of its proper divisors (20629949).

142666051 is a wasteful number, since it uses less digits than its factorization.

142666051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 142666051 is about 11944.2894723797. The cubic root of 142666051 is about 522.5247667266.

The spelling of 142666051 in words is "one hundred forty-two million, six hundred sixty-six thousand, fifty-one".