137651629 has 2 divisors, whose sum is σ = 137651630. Its totient is φ = 137651628.

The previous prime is 137651627. The next prime is 137651639. The reversal of 137651629 is 926156731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128029225 + 9622404 = 11315^2 + 3102^2 .

It is a cyclic number.

It is not a de Polignac number, because 137651629 - 2¹ = 137651627 is a prime.

Together with 137651627, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 137651591 and 137651600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137651621) 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, 68825814 + 68825815.

It is an arithmetic number, because the mean of its divisors is an integer number (68825815).

Almost surely, 2^137651629 is an apocalyptic number.

It is an amenable number.

137651629 is a deficient number, since it is larger than the sum of its proper divisors (1).

137651629 is an equidigital number, since it uses as much as digits as its factorization.

137651629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 137651629 is about 11732.5031003618. The cubic root of 137651629 is about 516.3297136082.

The spelling of 137651629 in words is "one hundred thirty-seven million, six hundred fifty-one thousand, six hundred twenty-nine".