1254542532 has 12 divisors (see below), whose sum is σ = 2927265936. Its totient is φ = 418180840.

The previous prime is 1254542479. The next prime is 1254542533. The reversal of 1254542532 is 2352454521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1254542493 and 1254542502.

It is not an unprimeable number, because it can be changed into a prime (1254542533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52272594 + ... + 52272617.

It is an arithmetic number, because the mean of its divisors is an integer number (243938828).

Almost surely, 2^1254542532 is an apocalyptic number.

1254542532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1254542532 is an abundant number, since it is smaller than the sum of its proper divisors (1672723404).

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

1254542532 is a wasteful number, since it uses less digits than its factorization.

1254542532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104545218 (or 104545216 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 1254542532 is about 35419.5219052996. The cubic root of 1254542532 is about 1078.5206460150.

The spelling of 1254542532 in words is "one billion, two hundred fifty-four million, five hundred forty-two thousand, five hundred thirty-two".