612533401 has 8 divisors (see below), whose sum is σ = 648169344. Its totient is φ = 577647840.

The previous prime is 612533393. The next prime is 612533413. The reversal of 612533401 is 104335216.

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

It is a cyclic number.

It is not a de Polignac number, because 612533401 - 2³ = 612533393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612533431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185916 + ... + 189181.

It is an arithmetic number, because the mean of its divisors is an integer number (81021168).

Almost surely, 2^612533401 is an apocalyptic number.

It is an amenable number.

612533401 is a deficient number, since it is larger than the sum of its proper divisors (35635943).

612533401 is a wasteful number, since it uses less digits than its factorization.

612533401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375191.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 612533401 is about 24749.4121344326. The cubic root of 612533401 is about 849.2650630032.

Adding to 612533401 its reverse (104335216), we get a palindrome (716868617).

The spelling of 612533401 in words is "six hundred twelve million, five hundred thirty-three thousand, four hundred one".