1035541621 has 6 divisors (see below), whose sum is σ = 1100039330. Its totient is φ = 974627136.

The previous prime is 1035541601. The next prime is 1035541651. The reversal of 1035541621 is 1261455301.

It can be written as a sum of positive squares in 3 ways, for example, as 89302500 + 946239121 = 9450^2 + 30761^2 .

It is not a de Polignac number, because 1035541621 - 2⁵ = 1035541589 is a prime.

It is a super-3 number, since 3×1035541621³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1035541621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035541601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1791306 + ... + 1791883.

Almost surely, 2^1035541621 is an apocalyptic number.

It is an amenable number.

1035541621 is a deficient number, since it is larger than the sum of its proper divisors (64497709).

1035541621 is an equidigital number, since it uses as much as digits as its factorization.

1035541621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583223 (or 3583206 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1035541621 is about 32179.8325197631. The cubic root of 1035541621 is about 1011.7095580693.

Adding to 1035541621 its reverse (1261455301), we get a palindrome (2296996922).

The spelling of 1035541621 in words is "one billion, thirty-five million, five hundred forty-one thousand, six hundred twenty-one".