451142019 has 6 divisors (see below), whose sum is σ = 651649596. Its totient is φ = 300761340.

The previous prime is 451141993. The next prime is 451142059. The reversal of 451142019 is 910241154.

451142019 is a `hidden beast` number, since 451 + 1 + 4 + 201 + 9 = 666.

It is not a de Polignac number, because 451142019 - 2⁸ = 451141763 is a prime.

It is a super-2 number, since 2×451142019² = 407058242614792722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 451141983 and 451142001.

It is not an unprimeable number, because it can be changed into a prime (451142059) 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, 25063437 + ... + 25063454.

It is an arithmetic number, because the mean of its divisors is an integer number (108608266).

Almost surely, 2^451142019 is an apocalyptic number.

451142019 is a deficient number, since it is larger than the sum of its proper divisors (200507577).

451142019 is a wasteful number, since it uses less digits than its factorization.

451142019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50126897 (or 50126894 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 451142019 is about 21240.1040251690. The cubic root of 451142019 is about 766.9571365845.

The spelling of 451142019 in words is "four hundred fifty-one million, one hundred forty-two thousand, nineteen".