139781579201476 has 9 divisors (see below), whose sum is σ = 244617804982831. Its totient is φ = 69890777777812.

The previous prime is 139781579201461. The next prime is 139781579201491. The reversal of 139781579201476 is 674102975187931.

The square root of 139781579201476 is 11822926.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (139781579201461) and next prime (139781579201491).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20690121 + ... + 26601583.

It is a 2-persistent number, because it is pandigital, and so is 2⋅139781579201476 = 279563158402952, but 3⋅139781579201476 = 419344737604428 is not.

Almost surely, 2^{139781579201476} is an apocalyptic number.

139781579201476 is the 11822926-th square number.

It is an amenable number.

139781579201476 is a deficient number, since it is larger than the sum of its proper divisors (104836225781355).

139781579201476 is an frugal number, since it uses more digits than its factorization.

139781579201476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11822930 (or 5911465 counting only the distinct ones).

The product of its (nonzero) digits is 160030080, while the sum is 70.

The spelling of 139781579201476 in words is "one hundred thirty-nine trillion, seven hundred eighty-one billion, five hundred seventy-nine million, two hundred one thousand, four hundred seventy-six".