1407005645 has 8 divisors (see below), whose sum is σ = 1688624280. Its totient is φ = 1125459520.

The previous prime is 1407005641. The next prime is 1407005669. The reversal of 1407005645 is 5465007041.

It can be written as a sum of positive squares in 4 ways, for example, as 1032079876 + 374925769 = 32126^2 + 19363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1407005645 - 2² = 1407005641 is a prime.

It is a super-3 number, since 3×1407005645³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1407005641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43811 + ... + 68799.

It is an arithmetic number, because the mean of its divisors is an integer number (211078035).

Almost surely, 2^1407005645 is an apocalyptic number.

It is an amenable number.

1407005645 is a deficient number, since it is larger than the sum of its proper divisors (281618635).

1407005645 is a wasteful number, since it uses less digits than its factorization.

1407005645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36255.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1407005645 is about 37510.0739135502. The cubic root of 1407005645 is about 1120.5518233635.

The spelling of 1407005645 in words is "one billion, four hundred seven million, five thousand, six hundred forty-five".