1541972542 has 8 divisors (see below), whose sum is σ = 2523227832. Its totient is φ = 700896600.

The previous prime is 1541972527. The next prime is 1541972557. The reversal of 1541972542 is 2452791451.

It is an interprime number because it is at equal distance from previous prime (1541972527) and next prime (1541972557).

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 = 1541972495 and 1541972504.

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, 35044809 + ... + 35044852.

It is an arithmetic number, because the mean of its divisors is an integer number (315403479).

Almost surely, 2^1541972542 is an apocalyptic number.

1541972542 is a deficient number, since it is larger than the sum of its proper divisors (981255290).

1541972542 is a wasteful number, since it uses less digits than its factorization.

1541972542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70089674.

The product of its digits is 100800, while the sum is 40.

The square root of 1541972542 is about 39267.9582102253. The cubic root of 1541972542 is about 1155.2931901880.

The spelling of 1541972542 in words is "one billion, five hundred forty-one million, nine hundred seventy-two thousand, five hundred forty-two".