146240047 has 2 divisors, whose sum is σ = 146240048. Its totient is φ = 146240046.

The previous prime is 146240009. The next prime is 146240053. The reversal of 146240047 is 740042641.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146240047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146239997 and 146240024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146240447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73120023 + 73120024.

It is an arithmetic number, because the mean of its divisors is an integer number (73120024).

Almost surely, 2^146240047 is an apocalyptic number.

146240047 is a deficient number, since it is larger than the sum of its proper divisors (1).

146240047 is an equidigital number, since it uses as much as digits as its factorization.

146240047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 146240047 is about 12092.9751095419. The cubic root of 146240047 is about 526.8521693836.

Adding to 146240047 its reverse (740042641), we get a palindrome (886282688).

The spelling of 146240047 in words is "one hundred forty-six million, two hundred forty thousand, forty-seven".