136642430 has 32 divisors (see below), whose sum is σ = 262370016. Its totient is φ = 51057664.

The previous prime is 136642399. The next prime is 136642459. The reversal of 136642430 is 34246631.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136642393 and 136642402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20357 + ... + 26223.

It is an arithmetic number, because the mean of its divisors is an integer number (8199063).

Almost surely, 2^136642430 is an apocalyptic number.

136642430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136642430 is a deficient number, since it is larger than the sum of its proper divisors (125727586).

136642430 is a wasteful number, since it uses less digits than its factorization.

136642430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 136642430 is about 11689.4152976101. The cubic root of 136642430 is about 515.0647858925.

The spelling of 136642430 in words is "one hundred thirty-six million, six hundred forty-two thousand, four hundred thirty".