1245023133 has 8 divisors (see below), whose sum is σ = 1688167200. Its totient is φ = 815947248.

The previous prime is 1245023119. The next prime is 1245023141. The reversal of 1245023133 is 3313205421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1245023133 - 2¹⁰ = 1245022109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245023233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3516838 + ... + 3517191.

It is an arithmetic number, because the mean of its divisors is an integer number (211020900).

Almost surely, 2^1245023133 is an apocalyptic number.

It is an amenable number.

1245023133 is a deficient number, since it is larger than the sum of its proper divisors (443144067).

1245023133 is an equidigital number, since it uses as much as digits as its factorization.

1245023133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034091.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1245023133 is about 35284.8853335249. The cubic root of 1245023133 is about 1075.7857987792.

Adding to 1245023133 its reverse (3313205421), we get a palindrome (4558228554).

The spelling of 1245023133 in words is "one billion, two hundred forty-five million, twenty-three thousand, one hundred thirty-three".