136988419 has 2 divisors, whose sum is σ = 136988420. Its totient is φ = 136988418.

The previous prime is 136988407. The next prime is 136988441. The reversal of 136988419 is 914889631.

It is a weak prime.

It is an emirp because it is prime and its reverse (914889631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136988419 - 2⁵ = 136988387 is a prime.

It is a super-2 number, since 2×136988419² = 37531653880239122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136988459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68494209 + 68494210.

It is an arithmetic number, because the mean of its divisors is an integer number (68494210).

Almost surely, 2^136988419 is an apocalyptic number.

136988419 is a deficient number, since it is larger than the sum of its proper divisors (1).

136988419 is an equidigital number, since it uses as much as digits as its factorization.

136988419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 49.

The square root of 136988419 is about 11704.2051844625. The cubic root of 136988419 is about 515.4991471921.

The spelling of 136988419 in words is "one hundred thirty-six million, nine hundred eighty-eight thousand, four hundred nineteen".