4150991 has 8 divisors (see below), whose sum is σ = 4502400. Its totient is φ = 3804192.

The previous prime is 4150981. The next prime is 4151011. The reversal of 4150991 is 1990514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4150991 - 2¹⁰ = 4149967 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 (4150901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866 + ... + 3008.

It is an arithmetic number, because the mean of its divisors is an integer number (562800).

Almost surely, 2^4150991 is an apocalyptic number.

4150991 is a deficient number, since it is larger than the sum of its proper divisors (351409).

4150991 is a wasteful number, since it uses less digits than its factorization.

4150991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 4150991 is about 2037.3980956112. The cubic root of 4150991 is about 160.7128479777.

The spelling of 4150991 in words is "four million, one hundred fifty thousand, nine hundred ninety-one".