1253087123 has 8 divisors (see below), whose sum is σ = 1284136128. Its totient is φ = 1222124904.

The previous prime is 1253087117. The next prime is 1253087137. The reversal of 1253087123 is 3217803521.

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

It is a cyclic number.

It is not a de Polignac number, because 1253087123 - 2¹⁴ = 1253070739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1253087123.

It is not an unprimeable number, because it can be changed into a prime (1253087723) 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, 8036 + ... + 50702.

It is an arithmetic number, because the mean of its divisors is an integer number (160517016).

Almost surely, 2^1253087123 is an apocalyptic number.

1253087123 is a deficient number, since it is larger than the sum of its proper divisors (31049005).

1253087123 is an equidigital number, since it uses as much as digits as its factorization.

1253087123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43393.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1253087123 is about 35398.9706488762. The cubic root of 1253087123 is about 1078.1034166237.

The spelling of 1253087123 in words is "one billion, two hundred fifty-three million, eighty-seven thousand, one hundred twenty-three".