150311421 has 12 divisors (see below), whose sum is σ = 233817948. Its totient is φ = 92499264.

The previous prime is 150311419. The next prime is 150311443. The reversal of 150311421 is 124113051.

It can be written as a sum of positive squares in 2 ways, for example, as 100100025 + 50211396 = 10005^2 + 7086^2 .

It is not a de Polignac number, because 150311421 - 2¹ = 150311419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 150311394 and 150311403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150311401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642240 + ... + 642473.

It is an arithmetic number, because the mean of its divisors is an integer number (19484829).

Almost surely, 2^150311421 is an apocalyptic number.

It is an amenable number.

150311421 is a deficient number, since it is larger than the sum of its proper divisors (83506527).

150311421 is a wasteful number, since it uses less digits than its factorization.

150311421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284732 (or 1284729 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 150311421 is about 12260.1558309836. The cubic root of 150311421 is about 531.6967350759.

Adding to 150311421 its reverse (124113051), we get a palindrome (274424472).

The spelling of 150311421 in words is "one hundred fifty million, three hundred eleven thousand, four hundred twenty-one".