151201223 has 4 divisors (see below), whose sum is σ = 151684608. Its totient is φ = 150717840.

The previous prime is 151201217. The next prime is 151201279. The reversal of 151201223 is 322102151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151201223 - 2⁶ = 151201159 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 (151201823) 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, 241223 + ... + 241848.

It is an arithmetic number, because the mean of its divisors is an integer number (37921152).

Almost surely, 2^151201223 is an apocalyptic number.

151201223 is a deficient number, since it is larger than the sum of its proper divisors (483385).

151201223 is an equidigital number, since it uses as much as digits as its factorization.

151201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483384.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 151201223 is about 12296.3906492922. The cubic root of 151201223 is about 532.7438374261.

Adding to 151201223 its reverse (322102151), we get a palindrome (473303374).

The spelling of 151201223 in words is "one hundred fifty-one million, two hundred one thousand, two hundred twenty-three".