1254143542 has 8 divisors (see below), whose sum is σ = 1896028416. Its totient is φ = 622134072.

The previous prime is 1254143537. The next prime is 1254143551. The reversal of 1254143542 is 2453414521.

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

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, 2468533 + ... + 2469040.

It is an arithmetic number, because the mean of its divisors is an integer number (237003552).

Almost surely, 2^1254143542 is an apocalyptic number.

1254143542 is a deficient number, since it is larger than the sum of its proper divisors (641884874).

1254143542 is a wasteful number, since it uses less digits than its factorization.

1254143542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937702.

The product of its digits is 19200, while the sum is 31.

The square root of 1254143542 is about 35413.8891114772. The cubic root of 1254143542 is about 1078.4062976719.

The spelling of 1254143542 in words is "one billion, two hundred fifty-four million, one hundred forty-three thousand, five hundred forty-two".