148906315521 has 8 divisors (see below), whose sum is σ = 220601948960. Its totient is φ = 99270876996.

The previous prime is 148906315463. The next prime is 148906315531. The reversal of 148906315521 is 125513609841.

It is a happy number.

148906315521 is a `hidden beast` number, since 1 + 4 + 8 + 9 + 0 + 631 + 5 + 5 + 2 + 1 = 666.

It is not a de Polignac number, because 148906315521 - 2¹⁰ = 148906314497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (148906315531) 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, 2757524335 + ... + 2757524388.

It is an arithmetic number, because the mean of its divisors is an integer number (27575243620).

Almost surely, 2^148906315521 is an apocalyptic number.

It is an amenable number.

148906315521 is a deficient number, since it is larger than the sum of its proper divisors (71695633439).

148906315521 is an equidigital number, since it uses as much as digits as its factorization.

148906315521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515048732 (or 5515048726 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 148906315521 in words is "one hundred forty-eight billion, nine hundred six million, three hundred fifteen thousand, five hundred twenty-one".