612101801 has 2 divisors, whose sum is σ = 612101802. Its totient is φ = 612101800.

The previous prime is 612101759. The next prime is 612101827. The reversal of 612101801 is 108101216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 457746025 + 154355776 = 21395^2 + 12424^2 .

It is a cyclic number.

It is not a de Polignac number, because 612101801 - 2¹⁰ = 612100777 is a prime.

It is a super-2 number, since 2×612101801² = 749337229574887202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (612107801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306050900 + 306050901.

It is an arithmetic number, because the mean of its divisors is an integer number (306050901).

Almost surely, 2^612101801 is an apocalyptic number.

It is an amenable number.

612101801 is a deficient number, since it is larger than the sum of its proper divisors (1).

612101801 is an equidigital number, since it uses as much as digits as its factorization.

612101801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 612101801 is about 24740.6911989136. The cubic root of 612101801 is about 849.0655479374.

The spelling of 612101801 in words is "six hundred twelve million, one hundred one thousand, eight hundred one".