119453721 has 4 divisors (see below), whose sum is σ = 159271632. Its totient is φ = 79635812.

The previous prime is 119453707. The next prime is 119453749. The reversal of 119453721 is 127354911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 127354911 = 3 ⋅42451637.

It is a cyclic number.

It is not a de Polignac number, because 119453721 - 2²⁶ = 52344857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (119453821) 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, 19908951 + ... + 19908956.

It is an arithmetic number, because the mean of its divisors is an integer number (39817908).

Almost surely, 2^119453721 is an apocalyptic number.

It is an amenable number.

119453721 is a deficient number, since it is larger than the sum of its proper divisors (39817911).

119453721 is an equidigital number, since it uses as much as digits as its factorization.

119453721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39817910.

The product of its digits is 7560, while the sum is 33.

The square root of 119453721 is about 10929.4885973681. The cubic root of 119453721 is about 492.4928096385.

The spelling of 119453721 in words is "one hundred nineteen million, four hundred fifty-three thousand, seven hundred twenty-one".