1542132101 has 8 divisors (see below), whose sum is σ = 1689151320. Its totient is φ = 1401369088.

The previous prime is 1542132073. The next prime is 1542132161. The reversal of 1542132101 is 1012312451.

It can be written as a sum of positive squares in 4 ways, for example, as 833188225 + 708943876 = 28865^2 + 26626^2 .

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

It is not a de Polignac number, because 1542132101 - 2¹⁴ = 1542115717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542132161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1563536 + ... + 1564521.

It is an arithmetic number, because the mean of its divisors is an integer number (211143915).

Almost surely, 2^1542132101 is an apocalyptic number.

It is an amenable number.

1542132101 is a deficient number, since it is larger than the sum of its proper divisors (147019219).

1542132101 is a wasteful number, since it uses less digits than its factorization.

1542132101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128103.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1542132101 is about 39269.9898268385. The cubic root of 1542132101 is about 1155.3330376482. Note that the first 3 decimals are identical.

Adding to 1542132101 its reverse (1012312451), we get a palindrome (2554444552).

The spelling of 1542132101 in words is "one billion, five hundred forty-two million, one hundred thirty-two thousand, one hundred one".