612143901 has 12 divisors (see below), whose sum is σ = 884429728. Its totient is φ = 407993544.

The previous prime is 612143879. The next prime is 612143911. The reversal of 612143901 is 109341216.

612143901 is a `hidden beast` number, since 61 + 214 + 390 + 1 = 666.

612143901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 612143901 - 2²³ = 603755293 is a prime.

It is a super-3 number, since 3×612143901³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612143911) 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, 51726 + ... + 62448.

Almost surely, 2^612143901 is an apocalyptic number.

It is an amenable number.

612143901 is a deficient number, since it is larger than the sum of its proper divisors (272285827).

612143901 is a wasteful number, since it uses less digits than its factorization.

612143901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17072 (or 17069 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 612143901 is about 24741.5420093413. The cubic root of 612143901 is about 849.0850135666.

The spelling of 612143901 in words is "six hundred twelve million, one hundred forty-three thousand, nine hundred one".