1245553233 has 4 divisors (see below), whose sum is σ = 1660737648. Its totient is φ = 830368820.

The previous prime is 1245553223. The next prime is 1245553241. The reversal of 1245553233 is 3323555421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3323555421 = 3 ⋅1107851807.

It is a cyclic number.

It is not a de Polignac number, because 1245553233 - 2⁸ = 1245552977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1245553194 and 1245553203.

It is not an unprimeable number, because it can be changed into a prime (1245553223) 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, 207592203 + ... + 207592208.

It is an arithmetic number, because the mean of its divisors is an integer number (415184412).

Almost surely, 2^1245553233 is an apocalyptic number.

It is an amenable number.

1245553233 is a deficient number, since it is larger than the sum of its proper divisors (415184415).

1245553233 is an equidigital number, since it uses as much as digits as its factorization.

1245553233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415184414.

The product of its digits is 54000, while the sum is 33.

The square root of 1245553233 is about 35292.3962490506. The cubic root of 1245553233 is about 1075.9384580939.

The spelling of 1245553233 in words is "one billion, two hundred forty-five million, five hundred fifty-three thousand, two hundred thirty-three".