136005402 has 16 divisors (see below), whose sum is σ = 292934880. Its totient is φ = 41847792.

The previous prime is 136005383. The next prime is 136005409. The reversal of 136005402 is 204500631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (136005409) 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, 871752 + ... + 871907.

It is an arithmetic number, because the mean of its divisors is an integer number (18308430).

Almost surely, 2^136005402 is an apocalyptic number.

136005402 is an abundant number, since it is smaller than the sum of its proper divisors (156929478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136005402 is a wasteful number, since it uses less digits than its factorization.

136005402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743677.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 136005402 is about 11662.1353962300. The cubic root of 136005402 is about 514.2631268960.

The spelling of 136005402 in words is "one hundred thirty-six million, five thousand, four hundred two".