142214457 has 32 divisors (see below), whose sum is σ = 239431680. Its totient is φ = 72933120.

The previous prime is 142214419. The next prime is 142214467. The reversal of 142214457 is 754412241.

It is not a de Polignac number, because 142214457 - 2⁶ = 142214393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142214407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14353 + ... + 22145.

It is an arithmetic number, because the mean of its divisors is an integer number (7482240).

Almost surely, 2^142214457 is an apocalyptic number.

It is an amenable number.

142214457 is a deficient number, since it is larger than the sum of its proper divisors (97217223).

142214457 is a wasteful number, since it uses less digits than its factorization.

142214457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893.

The product of its digits is 8960, while the sum is 30.

The square root of 142214457 is about 11925.3703087158. The cubic root of 142214457 is about 521.9728520401.

Adding to 142214457 its reverse (754412241), we get a palindrome (896626698).

The spelling of 142214457 in words is "one hundred forty-two million, two hundred fourteen thousand, four hundred fifty-seven".