150261421 has 2 divisors, whose sum is σ = 150261422. Its totient is φ = 150261420.

The previous prime is 150261407. The next prime is 150261497. The reversal of 150261421 is 124162051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121220100 + 29041321 = 11010^2 + 5389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150261421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 150261392 and 150261401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150201421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75130710 + 75130711.

It is an arithmetic number, because the mean of its divisors is an integer number (75130711).

Almost surely, 2^150261421 is an apocalyptic number.

It is an amenable number.

150261421 is a deficient number, since it is larger than the sum of its proper divisors (1).

150261421 is an equidigital number, since it uses as much as digits as its factorization.

150261421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 150261421 is about 12258.1165355857. The cubic root of 150261421 is about 531.6377735216.

The spelling of 150261421 in words is "one hundred fifty million, two hundred sixty-one thousand, four hundred twenty-one".