149231966525 has 6 divisors (see below), whose sum is σ = 185047638522. Its totient is φ = 119385573200.

The previous prime is 149231966497. The next prime is 149231966567. The reversal of 149231966525 is 525669132941.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 160300921 + 149071665604 = 12661^2 + 386098^2 .

It is not a de Polignac number, because 149231966525 - 2¹⁸ = 149231704381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2984639306 + ... + 2984639355.

It is an arithmetic number, because the mean of its divisors is an integer number (30841273087).

Almost surely, 2^149231966525 is an apocalyptic number.

It is an amenable number.

149231966525 is a deficient number, since it is larger than the sum of its proper divisors (35815671997).

149231966525 is an equidigital number, since it uses as much as digits as its factorization.

149231966525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969278671 (or 5969278666 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 53.

The spelling of 149231966525 in words is "one hundred forty-nine billion, two hundred thirty-one million, nine hundred sixty-six thousand, five hundred twenty-five".