1331541542 has 8 divisors (see below), whose sum is σ = 2004421032. Its totient is φ = 663401200.

The previous prime is 1331541529. The next prime is 1331541557. The reversal of 1331541542 is 2451451331.

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, 1184084 + ... + 1185207.

It is an arithmetic number, because the mean of its divisors is an integer number (250552629).

Almost surely, 2^1331541542 is an apocalyptic number.

1331541542 is a deficient number, since it is larger than the sum of its proper divisors (672879490).

1331541542 is a wasteful number, since it uses less digits than its factorization.

1331541542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369574.

The product of its digits is 7200, while the sum is 29.

The square root of 1331541542 is about 36490.2938053395. The cubic root of 1331541542 is about 1100.1491648956.

Adding to 1331541542 its reverse (2451451331), we get a palindrome (3782992873).

The spelling of 1331541542 in words is "one billion, three hundred thirty-one million, five hundred forty-one thousand, five hundred forty-two".