1421515552 has 48 divisors (see below), whose sum is σ = 3074016960. Its totient is φ = 644067072.

The previous prime is 1421515547. The next prime is 1421515553. The reversal of 1421515552 is 2555151241.

It is not an unprimeable number, because it can be changed into a prime (1421515553) 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, 36843 + ... + 64810.

It is an arithmetic number, because the mean of its divisors is an integer number (64042020).

Almost surely, 2^1421515552 is an apocalyptic number.

It is an amenable number.

1421515552 is an abundant number, since it is smaller than the sum of its proper divisors (1652501408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421515552 is a wasteful number, since it uses less digits than its factorization.

1421515552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101705 (or 101697 counting only the distinct ones).

The product of its digits is 10000, while the sum is 31.

The square root of 1421515552 is about 37702.9912871645. The cubic root of 1421515552 is about 1124.3905972271.

Adding to 1421515552 its reverse (2555151241), we get a palindrome (3976666793).

The spelling of 1421515552 in words is "one billion, four hundred twenty-one million, five hundred fifteen thousand, five hundred fifty-two".