150423421 has 2 divisors, whose sum is σ = 150423422. Its totient is φ = 150423420.

The previous prime is 150423419. The next prime is 150423451. The reversal of 150423421 is 124324051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110544196 + 39879225 = 10514^2 + 6315^2 .

It is a cyclic number.

It is not a de Polignac number, because 150423421 - 2¹ = 150423419 is a prime.

Together with 150423419, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 150423392 and 150423401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150423401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75211710 + 75211711.

It is an arithmetic number, because the mean of its divisors is an integer number (75211711).

Almost surely, 2^150423421 is an apocalyptic number.

It is an amenable number.

150423421 is a deficient number, since it is larger than the sum of its proper divisors (1).

150423421 is an equidigital number, since it uses as much as digits as its factorization.

150423421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 150423421 is about 12264.7226222202. The cubic root of 150423421 is about 531.8287615257.

Adding to 150423421 its reverse (124324051), we get a palindrome (274747472).

The spelling of 150423421 in words is "one hundred fifty million, four hundred twenty-three thousand, four hundred twenty-one".