136778037 has 24 divisors (see below), whose sum is σ = 204747648. Its totient is φ = 81121920.

The previous prime is 136778029. The next prime is 136778053. The reversal of 136778037 is 730877631.

It is not a de Polignac number, because 136778037 - 2³ = 136778029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136778037.

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 23 ways as a sum of consecutive naturals, for example, 13053 + ... + 21069.

It is an arithmetic number, because the mean of its divisors is an integer number (8531152).

Almost surely, 2^136778037 is an apocalyptic number.

It is an amenable number.

136778037 is a deficient number, since it is larger than the sum of its proper divisors (67969611).

136778037 is a wasteful number, since it uses less digits than its factorization.

136778037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8089 (or 8078 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 136778037 is about 11695.2142776437. The cubic root of 136778037 is about 515.2351168247.

The spelling of 136778037 in words is "one hundred thirty-six million, seven hundred seventy-eight thousand, thirty-seven".