137314421 has 2 divisors, whose sum is σ = 137314422. Its totient is φ = 137314420.

The previous prime is 137314339. The next prime is 137314427. The reversal of 137314421 is 124413731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117831025 + 19483396 = 10855^2 + 4414^2 .

It is a cyclic number.

It is not a de Polignac number, because 137314421 - 2²⁶ = 70205557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137314427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68657210 + 68657211.

It is an arithmetic number, because the mean of its divisors is an integer number (68657211).

Almost surely, 2^137314421 is an apocalyptic number.

It is an amenable number.

137314421 is a deficient number, since it is larger than the sum of its proper divisors (1).

137314421 is an equidigital number, since it uses as much as digits as its factorization.

137314421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 137314421 is about 11718.1236125926. The cubic root of 137314421 is about 515.9077477147.

The spelling of 137314421 in words is "one hundred thirty-seven million, three hundred fourteen thousand, four hundred twenty-one".