1421225523 has 12 divisors (see below), whose sum is σ = 2057068728. Its totient is φ = 945551040.

The previous prime is 1421225513. The next prime is 1421225549. The reversal of 1421225523 is 3255221241.

1421225523 is a `hidden beast` number, since 14 + 2 + 122 + 5 + 523 = 666.

1421225523 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1421225523 - 2¹² = 1421221427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421225513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156390 + ... + 165227.

It is an arithmetic number, because the mean of its divisors is an integer number (171422394).

Almost surely, 2^1421225523 is an apocalyptic number.

1421225523 is a deficient number, since it is larger than the sum of its proper divisors (635843205).

1421225523 is a wasteful number, since it uses less digits than its factorization.

1421225523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322114 (or 322111 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1421225523 is about 37699.1448576755. The cubic root of 1421225523 is about 1124.3141229644.

Adding to 1421225523 its reverse (3255221241), we get a palindrome (4676446764).

The spelling of 1421225523 in words is "one billion, four hundred twenty-one million, two hundred twenty-five thousand, five hundred twenty-three".