1421525330 has 8 divisors (see below), whose sum is σ = 2558745612. Its totient is φ = 568610128.

The previous prime is 1421525321. The next prime is 1421525333. The reversal of 1421525330 is 335251241.

It is a happy number.

1421525330 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1306027321 + 115498009 = 36139^2 + 10747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1421525330.

It is not an unprimeable number, because it can be changed into a prime (1421525333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71076257 + ... + 71076276.

Almost surely, 2^1421525330 is an apocalyptic number.

1421525330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421525330 is a deficient number, since it is larger than the sum of its proper divisors (1137220282).

1421525330 is a wasteful number, since it uses less digits than its factorization.

1421525330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142152540.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1421525330 is about 37703.1209583504. The cubic root of 1421525330 is about 1124.3931752892.

Adding to 1421525330 its reverse (335251241), we get a palindrome (1756776571).

The spelling of 1421525330 in words is "one billion, four hundred twenty-one million, five hundred twenty-five thousand, three hundred thirty".