146121559 has 2 divisors, whose sum is σ = 146121560. Its totient is φ = 146121558.

The previous prime is 146121557. The next prime is 146121617. The reversal of 146121559 is 955121641.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146121559 - 2¹ = 146121557 is a prime.

Together with 146121557, it forms a pair of twin primes.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146121551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73060779 + 73060780.

It is an arithmetic number, because the mean of its divisors is an integer number (73060780).

Almost surely, 2^146121559 is an apocalyptic number.

146121559 is a deficient number, since it is larger than the sum of its proper divisors (1).

146121559 is an equidigital number, since it uses as much as digits as its factorization.

146121559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 34.

The square root of 146121559 is about 12088.0750742209. The cubic root of 146121559 is about 526.7098405473.

The spelling of 146121559 in words is "one hundred forty-six million, one hundred twenty-one thousand, five hundred fifty-nine".