1253045540 has 24 divisors (see below), whose sum is σ = 2675998080. Its totient is φ = 492722528.

The previous prime is 1253045539. The next prime is 1253045561. The reversal of 1253045540 is 455403521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529772 + ... + 532131.

It is an arithmetic number, because the mean of its divisors is an integer number (111499920).

Almost surely, 2^1253045540 is an apocalyptic number.

1253045540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253045540 is an abundant number, since it is smaller than the sum of its proper divisors (1422952540).

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

1253045540 is a wasteful number, since it uses less digits than its factorization.

1253045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061971 (or 1061969 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1253045540 is about 35398.3832964162. The cubic root of 1253045540 is about 1078.0914910708.

The spelling of 1253045540 in words is "one billion, two hundred fifty-three million, forty-five thousand, five hundred forty".