1542414521 has 4 divisors (see below), whose sum is σ = 1568557200. Its totient is φ = 1516271844.

The previous prime is 1542414493. The next prime is 1542414551. The reversal of 1542414521 is 1254142451.

It is a happy number.

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 1542414521 - 2⁶ = 1542414457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1542414551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13071251 + ... + 13071368.

It is an arithmetic number, because the mean of its divisors is an integer number (392139300).

Almost surely, 2^1542414521 is an apocalyptic number.

It is an amenable number.

1542414521 is a deficient number, since it is larger than the sum of its proper divisors (26142679).

1542414521 is an equidigital number, since it uses as much as digits as its factorization.

1542414521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26142678.

The product of its digits is 6400, while the sum is 29.

The square root of 1542414521 is about 39273.5855378650. The cubic root of 1542414521 is about 1155.4035610575.

Adding to 1542414521 its reverse (1254142451), we get a palindrome (2796556972).

The spelling of 1542414521 in words is "one billion, five hundred forty-two million, four hundred fourteen thousand, five hundred twenty-one".