13900001487 has 8 divisors (see below), whose sum is σ = 18883021104. Its totient is φ = 9091824768.

The previous prime is 13900001483. The next prime is 13900001491. The reversal of 13900001487 is 78410000931.

It is an interprime number because it is at equal distance from previous prime (13900001483) and next prime (13900001491).

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

It is not a de Polignac number, because 13900001487 - 2² = 13900001483 is a prime.

It is a super-2 number, since 2×13900001487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13900001483) 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, 43710538 + ... + 43710855.

It is an arithmetic number, because the mean of its divisors is an integer number (2360377638).

Almost surely, 2^13900001487 is an apocalyptic number.

13900001487 is a deficient number, since it is larger than the sum of its proper divisors (4983019617).

13900001487 is an equidigital number, since it uses as much as digits as its factorization.

13900001487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87421449.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 13900001487 in words is "thirteen billion, nine hundred million, one thousand, four hundred eighty-seven".