137550437 has 2 divisors, whose sum is σ = 137550438. Its totient is φ = 137550436.

The previous prime is 137550433. The next prime is 137550461. The reversal of 137550437 is 734055731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120253156 + 17297281 = 10966^2 + 4159^2 .

It is an emirp because it is prime and its reverse (734055731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137550437 - 2² = 137550433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137550397 and 137550406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137550431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68775218 + 68775219.

It is an arithmetic number, because the mean of its divisors is an integer number (68775219).

Almost surely, 2^137550437 is an apocalyptic number.

It is an amenable number.

137550437 is a deficient number, since it is larger than the sum of its proper divisors (1).

137550437 is an equidigital number, since it uses as much as digits as its factorization.

137550437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 137550437 is about 11728.1898432793. The cubic root of 137550437 is about 516.2031592402.

The spelling of 137550437 in words is "one hundred thirty-seven million, five hundred fifty thousand, four hundred thirty-seven".