3139487505 has 80 divisors (see below), whose sum is σ = 7016575104. Its totient is φ = 1304709120.

The previous prime is 3139487467. The next prime is 3139487543. The reversal of 3139487505 is 5057849313.

3139487505 is a `hidden beast` number, since 3 + 139 + 4 + 8 + 7 + 505 = 666.

It is an interprime number because it is at equal distance from previous prime (3139487467) and next prime (3139487543).

It is not a de Polignac number, because 3139487505 - 2⁶ = 3139487441 is a prime.

It is a super-2 number, since 2×3139487505² = 19712763588102250050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 19152 + ... + 81521.

Almost surely, 2^3139487505 is an apocalyptic number.

3139487505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3139487505 is an abundant number, since it is smaller than the sum of its proper divisors (3877087599).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3139487505 is a wasteful number, since it uses less digits than its factorization.

3139487505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100708 (or 100699 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 3139487505 is about 56031.1297851471. The cubic root of 3139487505 is about 1464.2646785296.

The spelling of 3139487505 in words is "three billion, one hundred thirty-nine million, four hundred eighty-seven thousand, five hundred five".