451142502 has 16 divisors (see below), whose sum is σ = 933398640. Its totient is φ = 145195232.

The previous prime is 451142491. The next prime is 451142533. The reversal of 451142502 is 205241154.

It is a super-2 number, since 2×451142502² = 407059114221640008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1296213 + ... + 1296560.

It is an arithmetic number, because the mean of its divisors is an integer number (58337415).

Almost surely, 2^451142502 is an apocalyptic number.

451142502 is an abundant number, since it is smaller than the sum of its proper divisors (482256138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451142502 is a wasteful number, since it uses less digits than its factorization.

451142502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592807.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 451142502 is about 21240.1153951668. The cubic root of 451142502 is about 766.9574102900.

Adding to 451142502 its reverse (205241154), we get a palindrome (656383656).

The spelling of 451142502 in words is "four hundred fifty-one million, one hundred forty-two thousand, five hundred two".