3541901991 has 4 divisors (see below), whose sum is σ = 4722535992. Its totient is φ = 2361267992.

The previous prime is 3541901989. The next prime is 3541902011. The reversal of 3541901991 is 1991091453.

3541901991 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3541901991 - 2¹ = 3541901989 is a prime.

It is a super-3 number, since 3×3541901991³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3541901971) 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, 590316996 + ... + 590317001.

It is an arithmetic number, because the mean of its divisors is an integer number (1180633998).

Almost surely, 2^3541901991 is an apocalyptic number.

3541901991 is a deficient number, since it is larger than the sum of its proper divisors (1180634001).

3541901991 is a wasteful number, since it uses less digits than its factorization.

3541901991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180634000.

The product of its (nonzero) digits is 43740, while the sum is 42.

The square root of 3541901991 is about 59513.8806582128. The cubic root of 3541901991 is about 1524.3294719119.

The spelling of 3541901991 in words is "three billion, five hundred forty-one million, nine hundred one thousand, nine hundred ninety-one".