612403142 has 32 divisors (see below), whose sum is σ = 1020932640. Its totient is φ = 273703680.

The previous prime is 612403139. The next prime is 612403151. The reversal of 612403142 is 241304216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146108 + ... + 150240.

It is an arithmetic number, because the mean of its divisors is an integer number (31904145).

Almost surely, 2^612403142 is an apocalyptic number.

612403142 is a deficient number, since it is larger than the sum of its proper divisors (408529498).

612403142 is a wasteful number, since it uses less digits than its factorization.

612403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 612403142 is about 24746.7804370589. The cubic root of 612403142 is about 849.2048582534.

Adding to 612403142 its reverse (241304216), we get a palindrome (853707358).

The spelling of 612403142 in words is "six hundred twelve million, four hundred three thousand, one hundred forty-two".