136786078 has 16 divisors (see below), whose sum is σ = 241050096. Its totient is φ = 57392640.

The previous prime is 136786049. The next prime is 136786079. The reversal of 136786078 is 870687631.

It is a super-2 number, since 2×136786078² = 37420862269244168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136786079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238851 + ... + 239422.

It is an arithmetic number, because the mean of its divisors is an integer number (15065631).

Almost surely, 2^136786078 is an apocalyptic number.

136786078 is a deficient number, since it is larger than the sum of its proper divisors (104264018).

136786078 is a wasteful number, since it uses less digits than its factorization.

136786078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478299.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 136786078 is about 11695.5580456855. The cubic root of 136786078 is about 515.2452132907.

The spelling of 136786078 in words is "one hundred thirty-six million, seven hundred eighty-six thousand, seventy-eight".