118790531 has 4 divisors (see below), whose sum is σ = 120563592. Its totient is φ = 117017472.

The previous prime is 118790473. The next prime is 118790533. The reversal of 118790531 is 135097811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135097811 = 131 ⋅1031281.

It is a cyclic number.

It is not a de Polignac number, because 118790531 - 2¹⁰ = 118789507 is a prime.

It is a super-2 number, since 2×118790531² = 28222380510523922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118790491 and 118790500.

It is not an unprimeable number, because it can be changed into a prime (118790533) 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, 886430 + ... + 886563.

It is an arithmetic number, because the mean of its divisors is an integer number (30140898).

Almost surely, 2^118790531 is an apocalyptic number.

118790531 is a deficient number, since it is larger than the sum of its proper divisors (1773061).

118790531 is an equidigital number, since it uses as much as digits as its factorization.

118790531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773060.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 118790531 is about 10899.1068900163. The cubic root of 118790531 is about 491.5797011495.

The spelling of 118790531 in words is "one hundred eighteen million, seven hundred ninety thousand, five hundred thirty-one".