137881453 has 2 divisors, whose sum is σ = 137881454. Its totient is φ = 137881452.

The previous prime is 137881433. The next prime is 137881493. The reversal of 137881453 is 354188731.

It is an a-pointer prime, because the next prime (137881493) can be obtained adding 137881453 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137874564 + 6889 = 11742^2 + 83^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137881453 is a prime.

It is a super-2 number, since 2×137881453² = 38022590162782418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137881433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68940726 + 68940727.

It is an arithmetic number, because the mean of its divisors is an integer number (68940727).

Almost surely, 2^137881453 is an apocalyptic number.

It is an amenable number.

137881453 is a deficient number, since it is larger than the sum of its proper divisors (1).

137881453 is an equidigital number, since it uses as much as digits as its factorization.

137881453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 137881453 is about 11742.2933449987. The cubic root of 137881453 is about 516.6169095799.

The spelling of 137881453 in words is "one hundred thirty-seven million, eight hundred eighty-one thousand, four hundred fifty-three".