1421542113 has 8 divisors (see below), whose sum is σ = 1895687808. Its totient is φ = 947545584.

The previous prime is 1421542103. The next prime is 1421542121. The reversal of 1421542113 is 3112451241.

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

It is not a de Polignac number, because 1421542113 - 2⁸ = 1421541857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421542103) 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, 12745 + ... + 54822.

It is an arithmetic number, because the mean of its divisors is an integer number (236960976).

Almost surely, 2^1421542113 is an apocalyptic number.

It is an amenable number.

1421542113 is a deficient number, since it is larger than the sum of its proper divisors (474145695).

1421542113 is an equidigital number, since it uses as much as digits as its factorization.

1421542113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74583.

The product of its digits is 960, while the sum is 24.

The square root of 1421542113 is about 37703.3435254753. The cubic root of 1421542113 is about 1124.3976002582.

Adding to 1421542113 its reverse (3112451241), we get a palindrome (4533993354).

The spelling of 1421542113 in words is "one billion, four hundred twenty-one million, five hundred forty-two thousand, one hundred thirteen".