150841921 has 2 divisors, whose sum is σ = 150841922. Its totient is φ = 150841920.

The previous prime is 150841897. The next prime is 150841927. The reversal of 150841921 is 129148051.

It is a happy number.

150841921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75777025 + 75064896 = 8705^2 + 8664^2 .

It is a cyclic number.

It is not a de Polignac number, because 150841921 - 2¹⁷ = 150710849 is a prime.

It is not a weakly prime, because it can be changed into another prime (150841927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75420960 + 75420961.

It is an arithmetic number, because the mean of its divisors is an integer number (75420961).

Almost surely, 2^150841921 is an apocalyptic number.

It is an amenable number.

150841921 is a deficient number, since it is larger than the sum of its proper divisors (1).

150841921 is an equidigital number, since it uses as much as digits as its factorization.

150841921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 150841921 is about 12281.7718998522. The cubic root of 150841921 is about 532.3215133545.

Adding to 150841921 its reverse (129148051), we get a palindrome (279989972).

The spelling of 150841921 in words is "one hundred fifty million, eight hundred forty-one thousand, nine hundred twenty-one".