150355421 has 4 divisors (see below), whose sum is σ = 150380412. Its totient is φ = 150330432.

The previous prime is 150355411. The next prime is 150355441. The reversal of 150355421 is 124553051.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 113316025 + 37039396 = 10645^2 + 6086^2 .

It is a cyclic number.

It is not a de Polignac number, because 150355421 - 2⁶ = 150355357 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 (150355411) 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, 2645 + ... + 17541.

It is an arithmetic number, because the mean of its divisors is an integer number (37595103).

Almost surely, 2^150355421 is an apocalyptic number.

It is an amenable number.

150355421 is a deficient number, since it is larger than the sum of its proper divisors (24991).

150355421 is a wasteful number, since it uses less digits than its factorization.

150355421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24990.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 150355421 is about 12261.9501303830. The cubic root of 150355421 is about 531.7486104287.

The spelling of 150355421 in words is "one hundred fifty million, three hundred fifty-five thousand, four hundred twenty-one".