1421144152 has 32 divisors (see below), whose sum is σ = 2730142800. Its totient is φ = 693149184.

The previous prime is 1421144119. The next prime is 1421144167. The reversal of 1421144152 is 2514411241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320124 + ... + 324532.

Almost surely, 2^1421144152 is an apocalyptic number.

It is an amenable number.

1421144152 is a deficient number, since it is larger than the sum of its proper divisors (1308998648).

1421144152 is a wasteful number, since it uses less digits than its factorization.

1421144152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395 (or 5391 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1421144152 is about 37698.0656267666. The cubic root of 1421144152 is about 1124.2926653540.

Adding to 1421144152 its reverse (2514411241), we get a palindrome (3935555393).

The spelling of 1421144152 in words is "one billion, four hundred twenty-one million, one hundred forty-four thousand, one hundred fifty-two".