146947579 has 2 divisors, whose sum is σ = 146947580. Its totient is φ = 146947578.

The previous prime is 146947543. The next prime is 146947607. The reversal of 146947579 is 975749641.

It is a strong prime.

It is an emirp because it is prime and its reverse (975749641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146947579 - 2¹¹ = 146945531 is a prime.

It is a super-2 number, since 2×146947579² = 43187181947922482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146947519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73473789 + 73473790.

It is an arithmetic number, because the mean of its divisors is an integer number (73473790).

Almost surely, 2^146947579 is an apocalyptic number.

146947579 is a deficient number, since it is larger than the sum of its proper divisors (1).

146947579 is an equidigital number, since it uses as much as digits as its factorization.

146947579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 52.

The square root of 146947579 is about 12122.1936546155. The cubic root of 146947579 is about 527.7004669210.

The spelling of 146947579 in words is "one hundred forty-six million, nine hundred forty-seven thousand, five hundred seventy-nine".