148081021 has 8 divisors (see below), whose sum is σ = 161635104. Its totient is φ = 134542320.

The previous prime is 148081013. The next prime is 148081027. The reversal of 148081021 is 120180841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 148081021 - 2³ = 148081013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148081027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27291 + ... + 32263.

It is an arithmetic number, because the mean of its divisors is an integer number (20204388).

Almost surely, 2^148081021 is an apocalyptic number.

148081021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

148081021 is a deficient number, since it is larger than the sum of its proper divisors (13554083).

148081021 is a wasteful number, since it uses less digits than its factorization.

148081021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7691.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 148081021 is about 12168.8545475735. The cubic root of 148081021 is about 529.0537536366.

The spelling of 148081021 in words is "one hundred forty-eight million, eighty-one thousand, twenty-one".