136377505 has 16 divisors (see below), whose sum is σ = 180981504. Its totient is φ = 97822080.

The previous prime is 136377499. The next prime is 136377509. The reversal of 136377505 is 505773631.

It is a happy number.

It is not a de Polignac number, because 136377505 - 2⁵ = 136377473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136377509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12969 + ... + 20998.

It is an arithmetic number, because the mean of its divisors is an integer number (11311344).

Almost surely, 2^136377505 is an apocalyptic number.

It is an amenable number.

136377505 is a deficient number, since it is larger than the sum of its proper divisors (44603999).

136377505 is a wasteful number, since it uses less digits than its factorization.

136377505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34056.

The product of its (nonzero) digits is 66150, while the sum is 37.

The square root of 136377505 is about 11678.0779668574. The cubic root of 136377505 is about 514.7316979935.

The spelling of 136377505 in words is "one hundred thirty-six million, three hundred seventy-seven thousand, five hundred five".