612133507 has 12 divisors (see below), whose sum is σ = 654202920. Its totient is φ = 571180896.

The previous prime is 612133481. The next prime is 612133519. The reversal of 612133507 is 705331216.

It is not a de Polignac number, because 612133507 - 2¹¹ = 612131459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612134507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81703 + ... + 88879.

It is an arithmetic number, because the mean of its divisors is an integer number (54516910).

Almost surely, 2^612133507 is an apocalyptic number.

612133507 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

612133507 is a deficient number, since it is larger than the sum of its proper divisors (42069413).

612133507 is an equidigital number, since it uses as much as digits as its factorization.

612133507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7330 (or 7263 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 612133507 is about 24741.3319568693. The cubic root of 612133507 is about 849.0802078123.

The spelling of 612133507 in words is "six hundred twelve million, one hundred thirty-three thousand, five hundred seven".