137850551 has 2 divisors, whose sum is σ = 137850552. Its totient is φ = 137850550.

The previous prime is 137850541. The next prime is 137850571. The reversal of 137850551 is 155058731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137850551 - 2¹⁴ = 137834167 is a prime.

It is a super-4 number, since 4×137850551⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137850511) 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, 68925275 + 68925276.

It is an arithmetic number, because the mean of its divisors is an integer number (68925276).

Almost surely, 2^137850551 is an apocalyptic number.

137850551 is a deficient number, since it is larger than the sum of its proper divisors (1).

137850551 is an equidigital number, since it uses as much as digits as its factorization.

137850551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 35.

The square root of 137850551 is about 11740.9774294988. The cubic root of 137850551 is about 516.5783119581.

The spelling of 137850551 in words is "one hundred thirty-seven million, eight hundred fifty thousand, five hundred fifty-one".