136150421 has 4 divisors (see below), whose sum is σ = 148527744. Its totient is φ = 123773100.

The previous prime is 136150393. The next prime is 136150429. The reversal of 136150421 is 124051631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-136150421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136150429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188645 + ... + 6188666.

It is an arithmetic number, because the mean of its divisors is an integer number (37131936).

Almost surely, 2^136150421 is an apocalyptic number.

136150421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136150421 is a deficient number, since it is larger than the sum of its proper divisors (12377323).

136150421 is a wasteful number, since it uses less digits than its factorization.

136150421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12377322.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 136150421 is about 11668.3512545689. The cubic root of 136150421 is about 514.4458437395.

The spelling of 136150421 in words is "one hundred thirty-six million, one hundred fifty thousand, four hundred twenty-one".