1254540542 has 8 divisors (see below), whose sum is σ = 1883110296. Its totient is φ = 626837112.

The previous prime is 1254540533. The next prime is 1254540557. The reversal of 1254540542 is 2450454521.

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

It is a junction number, because it is equal to n+sod(n) for n = 1254540499 and 1254540508.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 212948 + ... + 218759.

It is an arithmetic number, because the mean of its divisors is an integer number (235388787).

Almost surely, 2^1254540542 is an apocalyptic number.

1254540542 is a deficient number, since it is larger than the sum of its proper divisors (628569754).

1254540542 is a wasteful number, since it uses less digits than its factorization.

1254540542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433162.

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 1254540542 is about 35419.4938134356. The cubic root of 1254540542 is about 1078.5200757521.

The spelling of 1254540542 in words is "one billion, two hundred fifty-four million, five hundred forty thousand, five hundred forty-two".