120591263 has 4 divisors (see below), whose sum is σ = 129867528. Its totient is φ = 111315000.

The previous prime is 120591259. The next prime is 120591283. The reversal of 120591263 is 362195021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362195021 = 1217 ⋅297613.

It is a cyclic number.

It is not a de Polignac number, because 120591263 - 2² = 120591259 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 (120591283) 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, 4638113 + ... + 4638138.

It is an arithmetic number, because the mean of its divisors is an integer number (32466882).

Almost surely, 2^120591263 is an apocalyptic number.

120591263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120591263 is a deficient number, since it is larger than the sum of its proper divisors (9276265).

120591263 is an equidigital number, since it uses as much as digits as its factorization.

120591263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276264.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 120591263 is about 10981.4053290096. The cubic root of 120591263 is about 494.0511879623.

The spelling of 120591263 in words is "one hundred twenty million, five hundred ninety-one thousand, two hundred sixty-three".