1612170541 has 4 divisors (see below), whose sum is σ = 1612700284. Its totient is φ = 1611640800.

The previous prime is 1612170479. The next prime is 1612170557. The reversal of 1612170541 is 1450712161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1450712161 = 4049 ⋅358289.

It can be written as a sum of positive squares in 2 ways, for example, as 1525214916 + 86955625 = 39054^2 + 9325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1612170541 - 2¹⁷ = 1612039469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612170941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260280 + ... + 266401.

It is an arithmetic number, because the mean of its divisors is an integer number (403175071).

Almost surely, 2^1612170541 is an apocalyptic number.

It is an amenable number.

1612170541 is a deficient number, since it is larger than the sum of its proper divisors (529743).

1612170541 is an equidigital number, since it uses as much as digits as its factorization.

1612170541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529742.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1612170541 is about 40151.8435566787. The cubic root of 1612170541 is about 1172.5651807500.

The spelling of 1612170541 in words is "one billion, six hundred twelve million, one hundred seventy thousand, five hundred forty-one".