146812637 has 2 divisors, whose sum is σ = 146812638. Its totient is φ = 146812636.

The previous prime is 146812613. The next prime is 146812669. The reversal of 146812637 is 736218641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143736121 + 3076516 = 11989^2 + 1754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146812637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146812637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146812037) 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, 73406318 + 73406319.

It is an arithmetic number, because the mean of its divisors is an integer number (73406319).

Almost surely, 2^146812637 is an apocalyptic number.

It is an amenable number.

146812637 is a deficient number, since it is larger than the sum of its proper divisors (1).

146812637 is an equidigital number, since it uses as much as digits as its factorization.

146812637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 146812637 is about 12116.6264694427. The cubic root of 146812637 is about 527.5388882930.

The spelling of 146812637 in words is "one hundred forty-six million, eight hundred twelve thousand, six hundred thirty-seven".