1421072552 has 8 divisors (see below), whose sum is σ = 2664511050. Its totient is φ = 710536272.

The previous prime is 1421072501. The next prime is 1421072591. The reversal of 1421072552 is 2552701241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1262665156 + 158407396 = 35534^2 + 12586^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88817027 + ... + 88817042.

Almost surely, 2^1421072552 is an apocalyptic number.

It is an amenable number.

1421072552 is a deficient number, since it is larger than the sum of its proper divisors (1243438498).

1421072552 is a wasteful number, since it uses less digits than its factorization.

1421072552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177634075 (or 177634071 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 1421072552 is about 37697.1159639567. The cubic root of 1421072552 is about 1124.2737836882.

Adding to 1421072552 its reverse (2552701241), we get a palindrome (3973773793).

The spelling of 1421072552 in words is "one billion, four hundred twenty-one million, seventy-two thousand, five hundred fifty-two".