148355158561 has 27 divisors (see below), whose sum is σ = 159717030291. Its totient is φ = 137773410624.

The previous prime is 148355158543. The next prime is 148355158577. The reversal of 148355158561 is 165851553841.

The square root of 148355158561 is 385169.

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., 115501421025 + 32853737536 = 339855^2 + 181256^2 .

It is not a de Polignac number, because 148355158561 - 2⁷ = 148355158433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148355158499 and 148355158508.

It is not an unprimeable number, because it can be changed into a prime (148355158531) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 910154266 + ... + 910154428.

Almost surely, 2^148355158561 is an apocalyptic number.

148355158561 is the 385169-th square number.

148355158561 is the 192585-th centered octagonal number.

It is an amenable number.

148355158561 is a deficient number, since it is larger than the sum of its proper divisors (11361871730).

148355158561 is an frugal number, since it uses more digits than its factorization.

148355158561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 319 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 52.

It can be divided in two parts, 148355 and 158561, that added together give a square (306916 = 554²).

The spelling of 148355158561 in words is "one hundred forty-eight billion, three hundred fifty-five million, one hundred fifty-eight thousand, five hundred sixty-one".