1381725037 has 8 divisors (see below), whose sum is σ = 1722670272. Its totient is φ = 1076668800.

The previous prime is 1381725017. The next prime is 1381725043. The reversal of 1381725037 is 7305271831.

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 1381725037 - 2¹¹ = 1381722989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1381724987 and 1381725005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381725017) 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, 8972164 + ... + 8972317.

It is an arithmetic number, because the mean of its divisors is an integer number (215333784).

Almost surely, 2^1381725037 is an apocalyptic number.

It is an amenable number.

1381725037 is a deficient number, since it is larger than the sum of its proper divisors (340945235).

1381725037 is a wasteful number, since it uses less digits than its factorization.

1381725037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17944499.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1381725037 is about 37171.5622082258. The cubic root of 1381725037 is about 1113.7999884266.

Adding to 1381725037 its reverse (7305271831), we get a palindrome (8686996868).

The spelling of 1381725037 in words is "one billion, three hundred eighty-one million, seven hundred twenty-five thousand, thirty-seven".