612138350 has 24 divisors (see below), whose sum is σ = 1145577720. Its totient is φ = 243349920.

The previous prime is 612138337. The next prime is 612138367. The reversal of 612138350 is 53831216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29405 + ... + 45704.

It is an arithmetic number, because the mean of its divisors is an integer number (47732405).

Almost surely, 2^612138350 is an apocalyptic number.

612138350 is a deficient number, since it is larger than the sum of its proper divisors (533439370).

612138350 is a wasteful number, since it uses less digits than its factorization.

612138350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75284 (or 75279 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 612138350 is about 24741.4298293369. The cubic root of 612138350 is about 849.0824470213.

Adding to 612138350 its reverse (53831216), we get a palindrome (665969566).

The spelling of 612138350 in words is "six hundred twelve million, one hundred thirty-eight thousand, three hundred fifty".