1541601 has 12 divisors (see below), whose sum is σ = 2249728. Its totient is φ = 1017144.

The previous prime is 1541597. The next prime is 1541629. The reversal of 1541601 is 1061451.

It is not a de Polignac number, because 1541601 - 2² = 1541597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1541651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96 + ... + 1758.

2^1541601 is an apocalyptic number.

It is an amenable number.

1541601 is a deficient number, since it is larger than the sum of its proper divisors (708127).

1541601 is a wasteful number, since it uses less digits than its factorization.

1541601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772 (or 1769 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1541601 is about 1241.6122583158. The cubic root of 1541601 is about 115.5200392508.

It can be divided in two parts, 15 and 41601, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 1541601 in words is "one million, five hundred forty-one thousand, six hundred one".