119491431 has 4 divisors (see below), whose sum is σ = 159321912. Its totient is φ = 79660952.

The previous prime is 119491387. The next prime is 119491441. The reversal of 119491431 is 134194911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134194911 = 3 ⋅44731637.

It is a cyclic number.

It is not a de Polignac number, because 119491431 - 2⁹ = 119490919 is a prime.

It is a super-2 number, since 2×119491431² = 28556404164855522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 119491392 and 119491401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119491441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19915236 + ... + 19915241.

It is an arithmetic number, because the mean of its divisors is an integer number (39830478).

Almost surely, 2^119491431 is an apocalyptic number.

119491431 is a deficient number, since it is larger than the sum of its proper divisors (39830481).

119491431 is an equidigital number, since it uses as much as digits as its factorization.

119491431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39830480.

The product of its digits is 3888, while the sum is 33.

The square root of 119491431 is about 10931.2136105741. The cubic root of 119491431 is about 492.5446287300.

The spelling of 119491431 in words is "one hundred nineteen million, four hundred ninety-one thousand, four hundred thirty-one".