137424731 has 2 divisors, whose sum is σ = 137424732. Its totient is φ = 137424730.

The previous prime is 137424709. The next prime is 137424733.

137424731 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 137424731 - 2¹⁴ = 137408347 is a prime.

It is a super-2 number, since 2×137424731² = 37771113380844722, which contains 22 as substring.

Together with 137424733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137424733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68712365 + 68712366.

It is an arithmetic number, because the mean of its divisors is an integer number (68712366).

Almost surely, 2^137424731 is an apocalyptic number.

137424731 is a deficient number, since it is larger than the sum of its proper divisors (1).

137424731 is an equidigital number, since it uses as much as digits as its factorization.

137424731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 32.

The square root of 137424731 is about 11722.8294792682. The cubic root of 137424731 is about 516.0458603051.

The spelling of 137424731 in words is "one hundred thirty-seven million, four hundred twenty-four thousand, seven hundred thirty-one".