3545660631 has 4 divisors (see below), whose sum is σ = 4727547512. Its totient is φ = 2363773752.

The previous prime is 3545660609. The next prime is 3545660639. The reversal of 3545660631 is 1360665453.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3545660631 - 2¹⁴ = 3545644247 is a prime.

It is a super-2 number, since 2×3545660631² = 25143418620446636322, which contains 22 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 3545660631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545660639) 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, 590943436 + ... + 590943441.

It is an arithmetic number, because the mean of its divisors is an integer number (1181886878).

Almost surely, 2^3545660631 is an apocalyptic number.

3545660631 is a deficient number, since it is larger than the sum of its proper divisors (1181886881).

3545660631 is a wasteful number, since it uses less digits than its factorization.

3545660631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181886880.

The product of its (nonzero) digits is 194400, while the sum is 39.

The square root of 3545660631 is about 59545.4501284523. The cubic root of 3545660631 is about 1524.8684836507.

The spelling of 3545660631 in words is "three billion, five hundred forty-five million, six hundred sixty thousand, six hundred thirty-one".