150161421 has 4 divisors (see below), whose sum is σ = 200215232. Its totient is φ = 100107612.

The previous prime is 150161419. The next prime is 150161491. The reversal of 150161421 is 124161051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 150161421 - 2¹ = 150161419 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 (150161491) 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, 25026901 + ... + 25026906.

It is an arithmetic number, because the mean of its divisors is an integer number (50053808).

Almost surely, 2^150161421 is an apocalyptic number.

It is an amenable number.

150161421 is a deficient number, since it is larger than the sum of its proper divisors (50053811).

150161421 is an equidigital number, since it uses as much as digits as its factorization.

150161421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50053810.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 150161421 is about 12254.0369266622. The cubic root of 150161421 is about 531.5198111620.

The spelling of 150161421 in words is "one hundred fifty million, one hundred sixty-one thousand, four hundred twenty-one".