245710227137 has 4 divisors (see below), whose sum is σ = 254182993620. Its totient is φ = 237237460656.

The previous prime is 245710227121. The next prime is 245710227149. The reversal of 245710227137 is 731722017542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43961928241 + 201748298896 = 209671^2 + 449164^2 .

It is a cyclic number.

It is not a de Polignac number, because 245710227137 - 2⁴ = 245710227121 is a prime.

It is a super-2 number, since 2×245710227137² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245710227094 and 245710227103.

It is not an unprimeable number, because it can be changed into a prime (245710221137) 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, 4236383198 + ... + 4236383255.

It is an arithmetic number, because the mean of its divisors is an integer number (63545748405).

Almost surely, 2^245710227137 is an apocalyptic number.

It is an amenable number.

245710227137 is a deficient number, since it is larger than the sum of its proper divisors (8472766483).

245710227137 is an equidigital number, since it uses as much as digits as its factorization.

245710227137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8472766482.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 245710227137 in words is "two hundred forty-five billion, seven hundred ten million, two hundred twenty-seven thousand, one hundred thirty-seven".