1253123502 has 8 divisors (see below), whose sum is σ = 2506247016. Its totient is φ = 417707832.

The previous prime is 1253123483. The next prime is 1253123569. The reversal of 1253123502 is 2053213521.

It is a happy number.

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

1253123502 is an admirable number.

It is a super-2 number, since 2×1253123502² = 3140637022529488008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104426953 + ... + 104426964.

It is an arithmetic number, because the mean of its divisors is an integer number (313280877).

Almost surely, 2^1253123502 is an apocalyptic number.

1253123502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253123502 is a wasteful number, since it uses less digits than its factorization.

1253123502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208853922.

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

The square root of 1253123502 is about 35399.4844877719. The cubic root of 1253123502 is about 1078.1138495095.

The spelling of 1253123502 in words is "one billion, two hundred fifty-three million, one hundred twenty-three thousand, five hundred two".