136778007 has 16 divisors (see below), whose sum is σ = 189578880. Its totient is φ = 87612000.

The previous prime is 136777999. The next prime is 136778029. The reversal of 136778007 is 700877631.

It is not a de Polignac number, because 136778007 - 2³ = 136777999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136778087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14632 + ... + 22082.

It is an arithmetic number, because the mean of its divisors is an integer number (11848680).

Almost surely, 2^136778007 is an apocalyptic number.

136778007 is a deficient number, since it is larger than the sum of its proper divisors (52800873).

136778007 is a wasteful number, since it uses less digits than its factorization.

136778007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7694.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 136778007 is about 11695.2129950677. The cubic root of 136778007 is about 515.2350791553.

The spelling of 136778007 in words is "one hundred thirty-six million, seven hundred seventy-eight thousand, seven".