148753681 has 2 divisors, whose sum is σ = 148753682. Its totient is φ = 148753680.

The previous prime is 148753613. The next prime is 148753697. The reversal of 148753681 is 186357841.

148753681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138862656 + 9891025 = 11784^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 148753681 - 2¹³ = 148745489 is a prime.

It is a super-2 number, since 2×148753681² = 44255315222099522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (148753081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74376840 + 74376841.

It is an arithmetic number, because the mean of its divisors is an integer number (74376841).

Almost surely, 2^148753681 is an apocalyptic number.

It is an amenable number.

148753681 is a deficient number, since it is larger than the sum of its proper divisors (1).

148753681 is an equidigital number, since it uses as much as digits as its factorization.

148753681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 43.

The square root of 148753681 is about 12196.4618230042. The cubic root of 148753681 is about 529.8536216148.

The spelling of 148753681 in words is "one hundred forty-eight million, seven hundred fifty-three thousand, six hundred eighty-one".