1407145081057 has 4 divisors (see below), whose sum is σ = 1412225027476. Its totient is φ = 1402065134640.

The previous prime is 1407145081049. The next prime is 1407145081157. The reversal of 1407145081057 is 7501805417041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 542897817856 + 864247263201 = 736816^2 + 929649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1407145081057 - 2³ = 1407145081049 is a prime.

It is a super-2 number, since 2×1407145081057² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1407145081157) 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 3 ways as a sum of consecutive naturals, for example, 2539972794 + ... + 2539973347.

It is an arithmetic number, because the mean of its divisors is an integer number (353056256869).

Almost surely, 2^{1407145081057} is an apocalyptic number.

It is an amenable number.

1407145081057 is a deficient number, since it is larger than the sum of its proper divisors (5079946419).

1407145081057 is an equidigital number, since it uses as much as digits as its factorization.

1407145081057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079946418.

The product of its (nonzero) digits is 156800, while the sum is 43.

The spelling of 1407145081057 in words is "one trillion, four hundred seven billion, one hundred forty-five million, eighty-one thousand, fifty-seven".