151363221 has 4 divisors (see below), whose sum is σ = 201817632. Its totient is φ = 100908812.

The previous prime is 151363211. The next prime is 151363243. The reversal of 151363221 is 122363151.

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 a cyclic number.

It is not a de Polignac number, because 151363221 - 2¹¹ = 151361173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151363191 and 151363200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151363211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25227201 + ... + 25227206.

It is an arithmetic number, because the mean of its divisors is an integer number (50454408).

Almost surely, 2^151363221 is an apocalyptic number.

It is an amenable number.

151363221 is a deficient number, since it is larger than the sum of its proper divisors (50454411).

151363221 is an equidigital number, since it uses as much as digits as its factorization.

151363221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50454410.

The product of its digits is 1080, while the sum is 24.

The square root of 151363221 is about 12302.9761033662. The cubic root of 151363221 is about 532.9340312856.

The spelling of 151363221 in words is "one hundred fifty-one million, three hundred sixty-three thousand, two hundred twenty-one".