1542137420 has 12 divisors (see below), whose sum is σ = 3238488624. Its totient is φ = 616854960.

The previous prime is 1542137411. The next prime is 1542137431. The reversal of 1542137420 is 247312451.

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, 38553416 + ... + 38553455.

It is an arithmetic number, because the mean of its divisors is an integer number (269874052).

Almost surely, 2^1542137420 is an apocalyptic number.

1542137420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542137420 is an abundant number, since it is smaller than the sum of its proper divisors (1696351204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1542137420 is a wasteful number, since it uses less digits than its factorization.

1542137420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77106880 (or 77106878 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1542137420 is about 39270.0575502507. The cubic root of 1542137420 is about 1155.3343659411.

Adding to 1542137420 its reverse (247312451), we get a palindrome (1789449871).

The spelling of 1542137420 in words is "one billion, five hundred forty-two million, one hundred thirty-seven thousand, four hundred twenty".