10139591 has 16 divisors (see below), whose sum is σ = 12986880. Its totient is φ = 7685280.

The previous prime is 10139557. The next prime is 10139609. The reversal of 10139591 is 19593101.

It is a cyclic number.

It is not a de Polignac number, because 10139591 - 2¹⁰ = 10138567 is a prime.

It is a super-2 number, since 2×10139591² = 205622611294562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10139501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070 + ... + 4628.

It is an arithmetic number, because the mean of its divisors is an integer number (811680).

Almost surely, 2^10139591 is an apocalyptic number.

10139591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10139591 is a deficient number, since it is larger than the sum of its proper divisors (2847289).

10139591 is a wasteful number, since it uses less digits than its factorization.

10139591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 10139591 is about 3184.2724443741. The cubic root of 10139591 is about 216.4413059801.

The spelling of 10139591 in words is "ten million, one hundred thirty-nine thousand, five hundred ninety-one".