1434116921 has 4 divisors (see below), whose sum is σ = 1439011812. Its totient is φ = 1429222032.

The previous prime is 1434116891. The next prime is 1434116987. The reversal of 1434116921 is 1296114341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1296114341 = 1867 ⋅694223.

It can be written as a sum of positive squares in 2 ways, for example, as 1280852521 + 153264400 = 35789^2 + 12380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434116921 - 2¹⁰ = 1434115897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1434112921) 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, 2447006 + ... + 2447591.

It is an arithmetic number, because the mean of its divisors is an integer number (359752953).

Almost surely, 2^1434116921 is an apocalyptic number.

It is an amenable number.

1434116921 is a deficient number, since it is larger than the sum of its proper divisors (4894891).

1434116921 is an equidigital number, since it uses as much as digits as its factorization.

1434116921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894890.

The product of its digits is 5184, while the sum is 32.

The square root of 1434116921 is about 37869.7362150834. The cubic root of 1434116921 is about 1127.7033052758.

The spelling of 1434116921 in words is "one billion, four hundred thirty-four million, one hundred sixteen thousand, nine hundred twenty-one".