142494371 has 4 divisors (see below), whose sum is σ = 147408000. Its totient is φ = 137580744.

The previous prime is 142494347. The next prime is 142494377. The reversal of 142494371 is 173494241.

It is a happy number.

142494371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173494241 = 277 ⋅626333.

It is a cyclic number.

It is not a de Polignac number, because 142494371 - 2⁶ = 142494307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142494377) 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, 2456771 + ... + 2456828.

It is an arithmetic number, because the mean of its divisors is an integer number (36852000).

Almost surely, 2^142494371 is an apocalyptic number.

142494371 is a deficient number, since it is larger than the sum of its proper divisors (4913629).

142494371 is an equidigital number, since it uses as much as digits as its factorization.

142494371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4913628.

The product of its digits is 24192, while the sum is 35.

The square root of 142494371 is about 11937.1006111199. The cubic root of 142494371 is about 522.3150857760.

The spelling of 142494371 in words is "one hundred forty-two million, four hundred ninety-four thousand, three hundred seventy-one".