148162381 has 2 divisors, whose sum is σ = 148162382. Its totient is φ = 148162380.

The previous prime is 148162379. The next prime is 148162403. The reversal of 148162381 is 183261841.

148162381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82065481 + 66096900 = 9059^2 + 8130^2 .

It is a cyclic number.

It is not a de Polignac number, because 148162381 - 2¹ = 148162379 is a prime.

It is a super-2 number, since 2×148162381² = 43904182287178322, which contains 22 as substring.

Together with 148162379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148162181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74081190 + 74081191.

It is an arithmetic number, because the mean of its divisors is an integer number (74081191).

Almost surely, 2^148162381 is an apocalyptic number.

It is an amenable number.

148162381 is a deficient number, since it is larger than the sum of its proper divisors (1).

148162381 is an equidigital number, since it uses as much as digits as its factorization.

148162381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 34.

The square root of 148162381 is about 12172.1970490130. The cubic root of 148162381 is about 529.1506283798.

The spelling of 148162381 in words is "one hundred forty-eight million, one hundred sixty-two thousand, three hundred eighty-one".