1542442587 has 16 divisors (see below), whose sum is σ = 2351707392. Its totient is φ = 880901280.

The previous prime is 1542442571. The next prime is 1542442607. The reversal of 1542442587 is 7852442451.

It is not a de Polignac number, because 1542442587 - 2⁴ = 1542442571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1542442547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19537 + ... + 58877.

It is an arithmetic number, because the mean of its divisors is an integer number (146981712).

Almost surely, 2^1542442587 is an apocalyptic number.

1542442587 is a deficient number, since it is larger than the sum of its proper divisors (809264805).

1542442587 is a wasteful number, since it uses less digits than its factorization.

1542442587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41218.

The product of its digits is 358400, while the sum is 42.

The square root of 1542442587 is about 39273.9428501901. The cubic root of 1542442587 is about 1155.4105689790.

The spelling of 1542442587 in words is "one billion, five hundred forty-two million, four hundred forty-two thousand, five hundred eighty-seven".