1542500061 has 4 divisors (see below), whose sum is σ = 2056666752. Its totient is φ = 1028333372.

The previous prime is 1542500039. The next prime is 1542500119. The reversal of 1542500061 is 1600052451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1542500061 - 2¹⁰ = 1542499037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542500021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257083341 + ... + 257083346.

It is an arithmetic number, because the mean of its divisors is an integer number (514166688).

Almost surely, 2^1542500061 is an apocalyptic number.

It is an amenable number.

1542500061 is a deficient number, since it is larger than the sum of its proper divisors (514166691).

1542500061 is an equidigital number, since it uses as much as digits as its factorization.

1542500061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514166690.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1542500061 is about 39274.6745498928. The cubic root of 1542500061 is about 1155.4249196465.

The spelling of 1542500061 in words is "one billion, five hundred forty-two million, five hundred thousand, sixty-one".