1381482531015 has 32 divisors (see below), whose sum is σ = 2357477161920. Its totient is φ = 688388358144.

The previous prime is 1381482530977. The next prime is 1381482531019. The reversal of 1381482531015 is 5101352841831.

It is not a de Polignac number, because 1381482531015 - 2¹⁴ = 1381482514631 is a prime.

It is a super-2 number, since 2×1381482531015² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381482531019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19737250 + ... + 19807119.

It is an arithmetic number, because the mean of its divisors is an integer number (73671161310).

Almost surely, 2^{1381482531015} is an apocalyptic number.

1381482531015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1381482531015 is a deficient number, since it is larger than the sum of its proper divisors (975994630905).

1381482531015 is a wasteful number, since it uses less digits than its factorization.

1381482531015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39544531.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 1381482531015 in words is "one trillion, three hundred eighty-one billion, four hundred eighty-two million, five hundred thirty-one thousand, fifteen".