1373057407 has 4 divisors (see below), whose sum is σ = 1387212736. Its totient is φ = 1358902080.

The previous prime is 1373057351. The next prime is 1373057423. The reversal of 1373057407 is 7047503731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1373057407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373054407) 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, 7077519 + ... + 7077712.

It is an arithmetic number, because the mean of its divisors is an integer number (346803184).

Almost surely, 2^1373057407 is an apocalyptic number.

1373057407 is a deficient number, since it is larger than the sum of its proper divisors (14155329).

1373057407 is an equidigital number, since it uses as much as digits as its factorization.

1373057407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14155328.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 1373057407 is about 37054.7892586100. The cubic root of 1373057407 is about 1111.4661271859.

The spelling of 1373057407 in words is "one billion, three hundred seventy-three million, fifty-seven thousand, four hundred seven".