1253120523 has 8 divisors (see below), whose sum is σ = 1743472128. Its totient is φ = 799091304.

The previous prime is 1253120521. The next prime is 1253120563. The reversal of 1253120523 is 3250213521.

It is a happy number.

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

It is not a de Polignac number, because 1253120523 - 2¹ = 1253120521 is a prime.

It is a super-2 number, since 2×1253120523² = 3140622090327587058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1253120493 and 1253120502.

It is not an unprimeable number, because it can be changed into a prime (1253120521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9080515 + ... + 9080652.

It is an arithmetic number, because the mean of its divisors is an integer number (217934016).

Almost surely, 2^1253120523 is an apocalyptic number.

1253120523 is a deficient number, since it is larger than the sum of its proper divisors (490351605).

1253120523 is a wasteful number, since it uses less digits than its factorization.

1253120523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18161193.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1253120523 is about 35399.4424108629. The cubic root of 1253120523 is about 1078.1129951900.

The spelling of 1253120523 in words is "one billion, two hundred fifty-three million, one hundred twenty thousand, five hundred twenty-three".