612021423 has 16 divisors (see below), whose sum is σ = 909105120. Its totient is φ = 363640704.

The previous prime is 612021409. The next prime is 612021457. The reversal of 612021423 is 324120216.

It is not a de Polignac number, because 612021423 - 2⁶ = 612021359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612021423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612021463) 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, 269436 + ... + 271697.

It is an arithmetic number, because the mean of its divisors is an integer number (56819070).

Almost surely, 2^612021423 is an apocalyptic number.

612021423 is a deficient number, since it is larger than the sum of its proper divisors (297083697).

612021423 is a wasteful number, since it uses less digits than its factorization.

612021423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541178.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 612021423 is about 24739.0667366415. The cubic root of 612021423 is about 849.0283813648.

Adding to 612021423 its reverse (324120216), we get a palindrome (936141639).

The spelling of 612021423 in words is "six hundred twelve million, twenty-one thousand, four hundred twenty-three".