1421044154 has 24 divisors (see below), whose sum is σ = 2249550144. Its totient is φ = 672929400.

The previous prime is 1421044153. The next prime is 1421044169. The reversal of 1421044154 is 4514401241.

It is not an unprimeable number, because it can be changed into a prime (1421044153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82469 + ... + 98199.

It is an arithmetic number, because the mean of its divisors is an integer number (93731256).

Almost surely, 2^1421044154 is an apocalyptic number.

1421044154 is a deficient number, since it is larger than the sum of its proper divisors (828505990).

1421044154 is a wasteful number, since it uses less digits than its factorization.

1421044154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15842 (or 15811 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1421044154 is about 37696.7393019609. The cubic root of 1421044154 is about 1124.2662946642.

Adding to 1421044154 its reverse (4514401241), we get a palindrome (5935445395).

The spelling of 1421044154 in words is "one billion, four hundred twenty-one million, forty-four thousand, one hundred fifty-four".