148831213277 has 4 divisors (see below), whose sum is σ = 149917572636. Its totient is φ = 147744853920.

The previous prime is 148831213261. The next prime is 148831213303. The reversal of 148831213277 is 772312138841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 772312138841 = 1163 ⋅664068907.

It can be written as a sum of positive squares in 2 ways, for example, as 32177543161 + 116653670116 = 179381^2 + 341546^2 .

It is a cyclic number.

It is not a de Polignac number, because 148831213277 - 2⁴ = 148831213261 is a prime.

It is a super-2 number, since 2×148831213277² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148831243277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543179474 + ... + 543179747.

It is an arithmetic number, because the mean of its divisors is an integer number (37479393159).

Almost surely, 2^148831213277 is an apocalyptic number.

It is an amenable number.

148831213277 is a deficient number, since it is larger than the sum of its proper divisors (1086359359).

148831213277 is a wasteful number, since it uses less digits than its factorization.

148831213277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086359358.

The product of its digits is 451584, while the sum is 47.

The spelling of 148831213277 in words is "one hundred forty-eight billion, eight hundred thirty-one million, two hundred thirteen thousand, two hundred seventy-seven".