451195489 has 6 divisors (see below), whose sum is σ = 476192850. Its totient is φ = 427448016.

The previous prime is 451195469. The next prime is 451195513. The reversal of 451195489 is 984591154.

451195489 = T₁₇₃₄₂ + T₁₇₃₄₃ + T₁₇₃₄₄.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 257763025 + 193432464 = 16055^2 + 13908^2 .

It is not a de Polignac number, because 451195489 - 2⁵ = 451195457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451195429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 624564 + ... + 625285.

It is an arithmetic number, because the mean of its divisors is an integer number (79365475).

Almost surely, 2^451195489 is an apocalyptic number.

451195489 is the 17344-th centered triangular number.

It is an amenable number.

451195489 is a deficient number, since it is larger than the sum of its proper divisors (24997361).

451195489 is a wasteful number, since it uses less digits than its factorization.

451195489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249887 (or 1249868 counting only the distinct ones).

The product of its digits is 259200, while the sum is 46.

The square root of 451195489 is about 21241.3626916919. The cubic root of 451195489 is about 766.9874356746.

It can be divided in two parts, 4511 and 95489, that added together give a 5-th power (100000 = 10⁵).

The spelling of 451195489 in words is "four hundred fifty-one million, one hundred ninety-five thousand, four hundred eighty-nine".