451342505 has 16 divisors (see below), whose sum is σ = 546546000. Its totient is φ = 357799680.

The previous prime is 451342487. The next prime is 451342519. The reversal of 451342505 is 505243154.

It can be written as a sum of positive squares in 8 ways, for example, as 123587689 + 327754816 = 11117^2 + 18104^2 .

It is not a de Polignac number, because 451342505 - 2²² = 447148201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315131 + ... + 316559.

It is an arithmetic number, because the mean of its divisors is an integer number (34159125).

Almost surely, 2^451342505 is an apocalyptic number.

It is an amenable number.

451342505 is a deficient number, since it is larger than the sum of its proper divisors (95203495).

451342505 is a wasteful number, since it uses less digits than its factorization.

451342505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 451342505 is about 21244.8230164433. The cubic root of 451342505 is about 767.0707308189.

Adding to 451342505 its reverse (505243154), we get a palindrome (956585659).

The spelling of 451342505 in words is "four hundred fifty-one million, three hundred forty-two thousand, five hundred five".