137764019 has 2 divisors, whose sum is σ = 137764020. Its totient is φ = 137764018.

The previous prime is 137764009. The next prime is 137764051. The reversal of 137764019 is 910467731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137764019 - 2⁸ = 137763763 is a prime.

It is a super-2 number, since 2×137764019² = 37957849862064722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137764009) 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, 68882009 + 68882010.

It is an arithmetic number, because the mean of its divisors is an integer number (68882010).

Almost surely, 2^137764019 is an apocalyptic number.

137764019 is a deficient number, since it is larger than the sum of its proper divisors (1).

137764019 is an equidigital number, since it uses as much as digits as its factorization.

137764019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 137764019 is about 11737.2918085903. The cubic root of 137764019 is about 516.4701999227.

The spelling of 137764019 in words is "one hundred thirty-seven million, seven hundred sixty-four thousand, nineteen".