150543421 has 8 divisors (see below), whose sum is σ = 172166720. Its totient is φ = 128949408.

The previous prime is 150543401. The next prime is 150543433. The reversal of 150543421 is 124345051.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 150543421 - 2¹⁵ = 150510653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150543401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5110 + ... + 18088.

It is an arithmetic number, because the mean of its divisors is an integer number (21520840).

Almost surely, 2^150543421 is an apocalyptic number.

It is an amenable number.

150543421 is a deficient number, since it is larger than the sum of its proper divisors (21623299).

150543421 is a wasteful number, since it uses less digits than its factorization.

150543421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14643.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 150543421 is about 12269.6137266012. The cubic root of 150543421 is about 531.9701457327.

Adding to 150543421 its reverse (124345051), we get a palindrome (274888472).

The spelling of 150543421 in words is "one hundred fifty million, five hundred forty-three thousand, four hundred twenty-one".