48137681 has 2 divisors, whose sum is σ = 48137682. Its totient is φ = 48137680.

The previous prime is 48137633. The next prime is 48137701. The reversal of 48137681 is 18673184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47389456 + 748225 = 6884^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 48137681 - 2¹⁰ = 48136657 is a prime.

It is a super-2 number, since 2×48137681² = 4634472664115522, which contains 22 as substring.

It is equal to p_2895905 and since 48137681 and 2895905 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (48137381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24068840 + 24068841.

It is an arithmetic number, because the mean of its divisors is an integer number (24068841).

Almost surely, 2^48137681 is an apocalyptic number.

It is an amenable number.

48137681 is a deficient number, since it is larger than the sum of its proper divisors (1).

48137681 is an equidigital number, since it uses as much as digits as its factorization.

48137681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 48137681 is about 6938.1323855920. The cubic root of 48137681 is about 363.7712632280.

The spelling of 48137681 in words is "forty-eight million, one hundred thirty-seven thousand, six hundred eighty-one".