142064419 has 4 divisors (see below), whose sum is σ = 162359344. Its totient is φ = 121769496.

The previous prime is 142064411. The next prime is 142064437. The reversal of 142064419 is 914460241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914460241 = 16931 ⋅54011.

It is a cyclic number.

It is not a de Polignac number, because 142064419 - 2³ = 142064411 is a prime.

It is a super-2 number, since 2×142064419² = 40364598291615122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142064411) 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, 10147452 + ... + 10147465.

It is an arithmetic number, because the mean of its divisors is an integer number (40589836).

Almost surely, 2^142064419 is an apocalyptic number.

142064419 is a deficient number, since it is larger than the sum of its proper divisors (20294925).

142064419 is an equidigital number, since it uses as much as digits as its factorization.

142064419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20294924.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 142064419 is about 11919.0779425256. The cubic root of 142064419 is about 521.7892248572.

The spelling of 142064419 in words is "one hundred forty-two million, sixty-four thousand, four hundred nineteen".