451009497 has 4 divisors (see below), whose sum is σ = 601346000. Its totient is φ = 300672996.

The previous prime is 451009487. The next prime is 451009513. The reversal of 451009497 is 794900154.

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.

It is not a de Polignac number, because 451009497 - 2¹⁰ = 451008473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451009457) 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, 75168247 + ... + 75168252.

It is an arithmetic number, because the mean of its divisors is an integer number (150336500).

Almost surely, 2^451009497 is an apocalyptic number.

It is an amenable number.

451009497 is a deficient number, since it is larger than the sum of its proper divisors (150336503).

451009497 is a wasteful number, since it uses less digits than its factorization.

451009497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150336502.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 451009497 is about 21236.9841785504. The cubic root of 451009497 is about 766.8820318924.

The spelling of 451009497 in words is "four hundred fifty-one million, nine thousand, four hundred ninety-seven".