146486869 has 2 divisors, whose sum is σ = 146486870. Its totient is φ = 146486868.

The previous prime is 146486843. The next prime is 146486887. The reversal of 146486869 is 968684641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92640625 + 53846244 = 9625^2 + 7338^2 .

It is an emirp because it is prime and its reverse (968684641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146486869 - 2¹³ = 146478677 is a prime.

It is a super-2 number, since 2×146486869² = 42916805578846322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146486819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73243434 + 73243435.

It is an arithmetic number, because the mean of its divisors is an integer number (73243435).

Almost surely, 2^146486869 is an apocalyptic number.

It is an amenable number.

146486869 is a deficient number, since it is larger than the sum of its proper divisors (1).

146486869 is an equidigital number, since it uses as much as digits as its factorization.

146486869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 52.

The square root of 146486869 is about 12103.1759881446. The cubic root of 146486869 is about 527.1484074710.

The spelling of 146486869 in words is "one hundred forty-six million, four hundred eighty-six thousand, eight hundred sixty-nine".