1421540056 has 16 divisors (see below), whose sum is σ = 2667574800. Its totient is φ = 710186784.

The previous prime is 1421540033. The next prime is 1421540077. The reversal of 1421540056 is 6500451241.

It is a super-2 number, since 2×1421540056² = 4041552261624966272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62460 + ... + 82123.

It is an arithmetic number, because the mean of its divisors is an integer number (166723425).

Almost surely, 2^1421540056 is an apocalyptic number.

It is an amenable number.

1421540056 is a deficient number, since it is larger than the sum of its proper divisors (1246034744).

1421540056 is a wasteful number, since it uses less digits than its factorization.

1421540056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145818 (or 145814 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1421540056 is about 37703.3162467176. The cubic root of 1421540056 is about 1124.3970579159.

Adding to 1421540056 its reverse (6500451241), we get a palindrome (7921991297).

The spelling of 1421540056 in words is "one billion, four hundred twenty-one million, five hundred forty thousand, fifty-six".