1523348421 has 16 divisors (see below), whose sum is σ = 2333326464. Its totient is φ = 865972224.

The previous prime is 1523348329. The next prime is 1523348441. The reversal of 1523348421 is 1248433251.

It is not a de Polignac number, because 1523348421 - 2¹⁵ = 1523315653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523348441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183876 + ... + 191981.

It is an arithmetic number, because the mean of its divisors is an integer number (145832904).

Almost surely, 2^1523348421 is an apocalyptic number.

It is an amenable number.

1523348421 is a deficient number, since it is larger than the sum of its proper divisors (809978043).

1523348421 is a wasteful number, since it uses less digits than its factorization.

1523348421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376060.

The product of its digits is 23040, while the sum is 33.

The square root of 1523348421 is about 39030.0963488434. The cubic root of 1523348421 is about 1150.6230828876.

The spelling of 1523348421 in words is "one billion, five hundred twenty-three million, three hundred forty-eight thousand, four hundred twenty-one".