150843421 has 2 divisors, whose sum is σ = 150843422. Its totient is φ = 150843420.

The previous prime is 150843391. The next prime is 150843457. The reversal of 150843421 is 124348051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150552900 + 290521 = 12270^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 150843421 - 2⁵ = 150843389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 150843421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150843461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75421710 + 75421711.

It is an arithmetic number, because the mean of its divisors is an integer number (75421711).

Almost surely, 2^150843421 is an apocalyptic number.

It is an amenable number.

150843421 is a deficient number, since it is larger than the sum of its proper divisors (1).

150843421 is an equidigital number, since it uses as much as digits as its factorization.

150843421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 150843421 is about 12281.8329658077. The cubic root of 150843421 is about 532.3232778499.

The spelling of 150843421 in words is "one hundred fifty million, eight hundred forty-three thousand, four hundred twenty-one".