137771391025 has 6 divisors (see below), whose sum is σ = 170836524902. Its totient is φ = 110217112800.

The previous prime is 137771391019. The next prime is 137771391031. The reversal of 137771391025 is 520193177731.

It is an interprime number because it is at equal distance from previous prime (137771391019) and next prime (137771391031).

It can be written as a sum of positive squares in 3 ways, for example, as 18500624289 + 119270766736 = 136017^2 + 345356^2 .

It is not a de Polignac number, because 137771391025 - 2⁵ = 137771390993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2755427796 + ... + 2755427845.

Almost surely, 2^137771391025 is an apocalyptic number.

It is an amenable number.

137771391025 is a deficient number, since it is larger than the sum of its proper divisors (33065133877).

137771391025 is an equidigital number, since it uses as much as digits as its factorization.

137771391025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510855651 (or 5510855646 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 46.

The spelling of 137771391025 in words is "one hundred thirty-seven billion, seven hundred seventy-one million, three hundred ninety-one thousand, twenty-five".