451233091 has 4 divisors (see below), whose sum is σ = 477776232. Its totient is φ = 424689952.

The previous prime is 451233089. The next prime is 451233103. The reversal of 451233091 is 190332154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190332154 = 2 ⋅95166077.

It is a cyclic number.

It is not a de Polignac number, because 451233091 - 2¹ = 451233089 is a prime.

It is a super-2 number, since 2×451233091² = 407222604826828562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451233001) 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, 13271545 + ... + 13271578.

It is an arithmetic number, because the mean of its divisors is an integer number (119444058).

Almost surely, 2^451233091 is an apocalyptic number.

451233091 is a deficient number, since it is larger than the sum of its proper divisors (26543141).

451233091 is a wasteful number, since it uses less digits than its factorization.

451233091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26543140.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 451233091 is about 21242.2477859571. The cubic root of 451233091 is about 767.0087416356.

The spelling of 451233091 in words is "four hundred fifty-one million, two hundred thirty-three thousand, ninety-one".