1542434817 has 32 divisors (see below), whose sum is σ = 2607528960. Its totient is φ = 787677120.

The previous prime is 1542434807. The next prime is 1542434819. The reversal of 1542434817 is 7184342451.

It is not a de Polignac number, because 1542434817 - 2⁶ = 1542434753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1542434819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42958 + ... + 70215.

It is an arithmetic number, because the mean of its divisors is an integer number (81485280).

Almost surely, 2^1542434817 is an apocalyptic number.

It is an amenable number.

1542434817 is a deficient number, since it is larger than the sum of its proper divisors (1065094143).

1542434817 is a wasteful number, since it uses less digits than its factorization.

1542434817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113253.

The product of its digits is 107520, while the sum is 39.

The square root of 1542434817 is about 39273.8439295162. The cubic root of 1542434817 is about 1155.4086288624.

The spelling of 1542434817 in words is "one billion, five hundred forty-two million, four hundred thirty-four thousand, eight hundred seventeen".