1381362025 has 12 divisors (see below), whose sum is σ = 1713570012. Its totient is φ = 1104650240.

The previous prime is 1381362011. The next prime is 1381362029. The reversal of 1381362025 is 5202631831.

It can be written as a sum of positive squares in 6 ways, for example, as 572357776 + 809004249 = 23924^2 + 28443^2 .

It is not a de Polignac number, because 1381362025 - 2¹⁷ = 1381230953 is a prime.

It is a super-2 number, since 2×1381362025² = 3816322088224201250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381362029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62889 + ... + 81961.

It is an arithmetic number, because the mean of its divisors is an integer number (142797501).

Almost surely, 2^1381362025 is an apocalyptic number.

It is an amenable number.

1381362025 is a deficient number, since it is larger than the sum of its proper divisors (332207987).

1381362025 is a wasteful number, since it uses less digits than its factorization.

1381362025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21980 (or 21975 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1381362025 is about 37166.6789611340. The cubic root of 1381362025 is about 1113.7024393089.

Adding to 1381362025 its reverse (5202631831), we get a palindrome (6583993856).

The spelling of 1381362025 in words is "one billion, three hundred eighty-one million, three hundred sixty-two thousand, twenty-five".