136530394 has 64 divisors (see below), whose sum is σ = 281014272. Its totient is φ = 48024000.

The previous prime is 136530391. The next prime is 136530397. The reversal of 136530394 is 493035631.

It is an interprime number because it is at equal distance from previous prime (136530391) and next prime (136530397).

It is not an unprimeable number, because it can be changed into a prime (136530391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93369 + ... + 94819.

It is an arithmetic number, because the mean of its divisors is an integer number (4390848).

Almost surely, 2^136530394 is an apocalyptic number.

136530394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

136530394 is an abundant number, since it is smaller than the sum of its proper divisors (144483878).

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

136530394 is a wasteful number, since it uses less digits than its factorization.

136530394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 136530394 is about 11684.6221162689. The cubic root of 136530394 is about 514.9239765872.

The spelling of 136530394 in words is "one hundred thirty-six million, five hundred thirty thousand, three hundred ninety-four".