146942047 has 4 divisors (see below), whose sum is σ = 167933776. Its totient is φ = 125950320.

The previous prime is 146942041. The next prime is 146942071. The reversal of 146942047 is 740249641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740249641 = 23 ⋅32184767.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146942047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146941997 and 146942015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146942041) 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, 10495854 + ... + 10495867.

It is an arithmetic number, because the mean of its divisors is an integer number (41983444).

Almost surely, 2^146942047 is an apocalyptic number.

146942047 is a deficient number, since it is larger than the sum of its proper divisors (20991729).

146942047 is an equidigital number, since it uses as much as digits as its factorization.

146942047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20991728.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 146942047 is about 12121.9654759449. The cubic root of 146942047 is about 527.6938448869.

The spelling of 146942047 in words is "one hundred forty-six million, nine hundred forty-two thousand, forty-seven".