153223403 has 4 divisors (see below), whose sum is σ = 154341960. Its totient is φ = 152104848.

The previous prime is 153223387. The next prime is 153223409. The reversal of 153223403 is 304322351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304322351 = 61 ⋅4988891.

It is a cyclic number.

It is not a de Polignac number, because 153223403 - 2⁴ = 153223387 is a prime.

It is a super-2 number, since 2×153223403² = 46954822453800818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153223409) 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, 559073 + ... + 559346.

It is an arithmetic number, because the mean of its divisors is an integer number (38585490).

Almost surely, 2^153223403 is an apocalyptic number.

153223403 is a deficient number, since it is larger than the sum of its proper divisors (1118557).

153223403 is a wasteful number, since it uses less digits than its factorization.

153223403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118556.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 153223403 is about 12378.3441138143. The cubic root of 153223403 is about 535.1083170791.

Adding to 153223403 its reverse (304322351), we get a palindrome (457545754).

The spelling of 153223403 in words is "one hundred fifty-three million, two hundred twenty-three thousand, four hundred three".