148620481 has 9 divisors (see below), whose sum is σ = 151591971. Its totient is φ = 145706832.

The previous prime is 148620473. The next prime is 148620509. The reversal of 148620481 is 184026841.

The square root of 148620481 is 12191.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 84364225 + 64256256 = 9185^2 + 8016^2 .

It is not a de Polignac number, because 148620481 - 2³ = 148620473 is a prime.

It is a super-2 number, since 2×148620481² = 44176094745342722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148620401) 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 in 8 ways as a sum of consecutive naturals, for example, 889860 + ... + 890026.

Almost surely, 2^148620481 is an apocalyptic number.

148620481 is the 12191-st square number.

148620481 is the 6096-th centered octagonal number.

It is an amenable number.

148620481 is a deficient number, since it is larger than the sum of its proper divisors (2971490).

148620481 is an frugal number, since it uses more digits than its factorization.

148620481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The cubic root of 148620481 is about 529.6954236729.

The spelling of 148620481 in words is "one hundred forty-eight million, six hundred twenty thousand, four hundred eighty-one".