137574748247 has 4 divisors (see below), whose sum is σ = 137576429760. Its totient is φ = 137573066736.

The previous prime is 137574748219. The next prime is 137574748309. The reversal of 137574748247 is 742847475731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742847475731 = 61 ⋅12177827471.

It is a cyclic number.

It is not a de Polignac number, because 137574748247 - 2¹⁸ = 137574486103 is a prime.

It is a super-2 number, since 2×137574748247² (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 (137574748747) 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, 711398 + ... + 883875.

It is an arithmetic number, because the mean of its divisors is an integer number (34394107440).

Almost surely, 2^137574748247 is an apocalyptic number.

137574748247 is a deficient number, since it is larger than the sum of its proper divisors (1681513).

137574748247 is an equidigital number, since it uses as much as digits as its factorization.

137574748247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681512.

The product of its digits is 36879360, while the sum is 59.

The spelling of 137574748247 in words is "one hundred thirty-seven billion, five hundred seventy-four million, seven hundred forty-eight thousand, two hundred forty-seven".