137512501563 has 4 divisors (see below), whose sum is σ = 183350002088. Its totient is φ = 91675001040.

The previous prime is 137512501561. The next prime is 137512501631. The reversal of 137512501563 is 365105215731.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 137512501563 - 2¹ = 137512501561 is a prime.

It is a super-2 number, since 2×137512501563² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137512501561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22918750258 + ... + 22918750263.

It is an arithmetic number, because the mean of its divisors is an integer number (45837500522).

Almost surely, 2^137512501563 is an apocalyptic number.

137512501563 is a deficient number, since it is larger than the sum of its proper divisors (45837500525).

137512501563 is an equidigital number, since it uses as much as digits as its factorization.

137512501563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45837500524.

The product of its (nonzero) digits is 94500, while the sum is 39.

The spelling of 137512501563 in words is "one hundred thirty-seven billion, five hundred twelve million, five hundred one thousand, five hundred sixty-three".