1534147842 has 8 divisors (see below), whose sum is σ = 3068295696. Its totient is φ = 511382612.

The previous prime is 1534147841. The next prime is 1534147861. The reversal of 1534147842 is 2487414351.

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

1534147842 is an admirable number.

It is a super-2 number, since 2×1534147842² = 4707219202226513928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1534147842.

It is not an unprimeable number, because it can be changed into a prime (1534147841) 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, 127845648 + ... + 127845659.

It is an arithmetic number, because the mean of its divisors is an integer number (383536962).

Almost surely, 2^1534147842 is an apocalyptic number.

1534147842 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.

1534147842 is a wasteful number, since it uses less digits than its factorization.

1534147842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255691312.

The product of its digits is 107520, while the sum is 39.

The square root of 1534147842 is about 39168.1993714289. The cubic root of 1534147842 is about 1153.3357068532.

The spelling of 1534147842 in words is "one billion, five hundred thirty-four million, one hundred forty-seven thousand, eight hundred forty-two".