150448421 has 2 divisors, whose sum is σ = 150448422. Its totient is φ = 150448420.

The previous prime is 150448399. The next prime is 150448439. The reversal of 150448421 is 124844051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148596100 + 1852321 = 12190^2 + 1361^2 .

It is an emirp because it is prime and its reverse (124844051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150448421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150448471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75224210 + 75224211.

It is an arithmetic number, because the mean of its divisors is an integer number (75224211).

Almost surely, 2^150448421 is an apocalyptic number.

It is an amenable number.

150448421 is a deficient number, since it is larger than the sum of its proper divisors (1).

150448421 is an equidigital number, since it uses as much as digits as its factorization.

150448421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 150448421 is about 12265.7417631385. The cubic root of 150448421 is about 531.8582227679.

The spelling of 150448421 in words is "one hundred fifty million, four hundred forty-eight thousand, four hundred twenty-one".