1373981601 has 8 divisors (see below), whose sum is σ = 1838229120. Its totient is φ = 912860912.

The previous prime is 1373981591. The next prime is 1373981617. The reversal of 1373981601 is 1061893731.

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

It is a cyclic number.

It is not a de Polignac number, because 1373981601 - 2¹³ = 1373973409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1373981601.

It is not an unprimeable number, because it can be changed into a prime (1373981201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780681 + ... + 782438.

It is an arithmetic number, because the mean of its divisors is an integer number (229778640).

Almost surely, 2^1373981601 is an apocalyptic number.

It is an amenable number.

1373981601 is a deficient number, since it is larger than the sum of its proper divisors (464247519).

1373981601 is a wasteful number, since it uses less digits than its factorization.

1373981601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563415.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1373981601 is about 37067.2578025405. The cubic root of 1373981601 is about 1111.7154442545.

The spelling of 1373981601 in words is "one billion, three hundred seventy-three million, nine hundred eighty-one thousand, six hundred one".