148126494821 has 4 divisors (see below), whose sum is σ = 148488662700. Its totient is φ = 147764326944.

The previous prime is 148126494799. The next prime is 148126494847. The reversal of 148126494821 is 128494621841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 144484372321 + 3642122500 = 380111^2 + 60350^2 .

It is a cyclic number.

It is not a de Polignac number, because 148126494821 - 2³⁴ = 130946625637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148126494821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148126494851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181083326 + ... + 181084143.

It is an arithmetic number, because the mean of its divisors is an integer number (37122165675).

Almost surely, 2^148126494821 is an apocalyptic number.

It is an amenable number.

148126494821 is a deficient number, since it is larger than the sum of its proper divisors (362167879).

148126494821 is an equidigital number, since it uses as much as digits as its factorization.

148126494821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362167878.

The product of its digits is 884736, while the sum is 50.

The spelling of 148126494821 in words is "one hundred forty-eight billion, one hundred twenty-six million, four hundred ninety-four thousand, eight hundred twenty-one".