148961 has 2 divisors, whose sum is σ = 148962. Its totient is φ = 148960.

The previous prime is 148957. The next prime is 148991. The reversal of 148961 is 169841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118336 + 30625 = 344^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 148961 - 2² = 148957 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74480 + 74481.

It is an arithmetic number, because the mean of its divisors is an integer number (74481).

2¹⁴⁸⁹⁶¹ is an apocalyptic number.

It is an amenable number.

148961 is a deficient number, since it is larger than the sum of its proper divisors (1).

148961 is an equidigital number, since it uses as much as digits as its factorization.

148961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 148961 is about 385.9546605497. The cubic root of 148961 is about 53.0099660860.

The spelling of 148961 in words is "one hundred forty-eight thousand, nine hundred sixty-one".