148187693 has 2 divisors, whose sum is σ = 148187694. Its totient is φ = 148187692.

The previous prime is 148187687. The next prime is 148187723. The reversal of 148187693 is 396781841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84235684 + 63952009 = 9178^2 + 7997^2 .

It is a cyclic number.

It is not a de Polignac number, because 148187693 - 2²² = 143993389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148187603) 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, 74093846 + 74093847.

It is an arithmetic number, because the mean of its divisors is an integer number (74093847).

Almost surely, 2^148187693 is an apocalyptic number.

It is an amenable number.

148187693 is a deficient number, since it is larger than the sum of its proper divisors (1).

148187693 is an equidigital number, since it uses as much as digits as its factorization.

148187693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The square root of 148187693 is about 12173.2367511685. The cubic root of 148187693 is about 529.1807599556.

The spelling of 148187693 in words is "one hundred forty-eight million, one hundred eighty-seven thousand, six hundred ninety-three".