137540387775 has 24 divisors (see below), whose sum is σ = 259885838464. Its totient is φ = 62875605600.

The previous prime is 137540387771. The next prime is 137540387779. The reversal of 137540387775 is 577783045731.

It is an interprime number because it is at equal distance from previous prime (137540387771) and next prime (137540387779).

It is not a de Polignac number, because 137540387775 - 2² = 137540387771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137540387771) 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 23 ways as a sum of consecutive naturals, for example, 130990321 + ... + 130991370.

Almost surely, 2^137540387775 is an apocalyptic number.

137540387775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

137540387775 is a deficient number, since it is larger than the sum of its proper divisors (122345450689).

137540387775 is a wasteful number, since it uses less digits than its factorization.

137540387775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261981711 (or 261981706 counting only the distinct ones).

The product of its (nonzero) digits is 17287200, while the sum is 57.

The spelling of 137540387775 in words is "one hundred thirty-seven billion, five hundred forty million, three hundred eighty-seven thousand, seven hundred seventy-five".