1521672423 has 8 divisors (see below), whose sum is σ = 2072064768. Its totient is φ = 992864184.

The previous prime is 1521672419. The next prime is 1521672461. The reversal of 1521672423 is 3242761251.

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

It is not a de Polignac number, because 1521672423 - 2² = 1521672419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521672463) 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 7 ways as a sum of consecutive naturals, for example, 5395861 + ... + 5396142.

It is an arithmetic number, because the mean of its divisors is an integer number (259008096).

Almost surely, 2^1521672423 is an apocalyptic number.

1521672423 is a deficient number, since it is larger than the sum of its proper divisors (550392345).

1521672423 is a wasteful number, since it uses less digits than its factorization.

1521672423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10792053.

The product of its digits is 20160, while the sum is 33.

The square root of 1521672423 is about 39008.6198551038. The cubic root of 1521672423 is about 1150.2009536667.

The spelling of 1521672423 in words is "one billion, five hundred twenty-one million, six hundred seventy-two thousand, four hundred twenty-three".