146021737 has 2 divisors, whose sum is σ = 146021738. Its totient is φ = 146021736.

The previous prime is 146021693. The next prime is 146021773. The reversal of 146021737 is 737120641.

Together with next prime (146021773) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102738496 + 43283241 = 10136^2 + 6579^2 .

It is a cyclic number.

It is not a de Polignac number, because 146021737 - 2¹¹ = 146019689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146021699 and 146021708.

It is not a weakly prime, because it can be changed into another prime (146021797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73010868 + 73010869.

It is an arithmetic number, because the mean of its divisors is an integer number (73010869).

Almost surely, 2^146021737 is an apocalyptic number.

It is an amenable number.

146021737 is a deficient number, since it is larger than the sum of its proper divisors (1).

146021737 is an equidigital number, since it uses as much as digits as its factorization.

146021737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 146021737 is about 12083.9454235775. The cubic root of 146021737 is about 526.5898737489.

The spelling of 146021737 in words is "one hundred forty-six million, twenty-one thousand, seven hundred thirty-seven".