148140521 has 2 divisors, whose sum is σ = 148140522. Its totient is φ = 148140520.

The previous prime is 148140491. The next prime is 148140541. The reversal of 148140521 is 125041841.

148140521 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., 120209296 + 27931225 = 10964^2 + 5285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148140521 is a prime.

It is a super-2 number, since 2×148140521² = 43891227924302882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148140541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74070260 + 74070261.

It is an arithmetic number, because the mean of its divisors is an integer number (74070261).

Almost surely, 2^148140521 is an apocalyptic number.

It is an amenable number.

148140521 is a deficient number, since it is larger than the sum of its proper divisors (1).

148140521 is an equidigital number, since it uses as much as digits as its factorization.

148140521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 148140521 is about 12171.2990678892. The cubic root of 148140521 is about 529.1246033263.

The spelling of 148140521 in words is "one hundred forty-eight million, one hundred forty thousand, five hundred twenty-one".