139562581945 has 8 divisors (see below), whose sum is σ = 167863674240. Its totient is φ = 111391014960.

The previous prime is 139562581927. The next prime is 139562581957. The reversal of 139562581945 is 549185265931.

It is a happy number.

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

It is not a de Polignac number, because 139562581945 - 2⁵ = 139562581913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139562581945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32378955 + ... + 32383264.

It is an arithmetic number, because the mean of its divisors is an integer number (20982959280).

Almost surely, 2^139562581945 is an apocalyptic number.

It is an amenable number.

139562581945 is a deficient number, since it is larger than the sum of its proper divisors (28301092295).

139562581945 is an equidigital number, since it uses as much as digits as its factorization.

139562581945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64762655.

The product of its digits is 11664000, while the sum is 58.

The spelling of 139562581945 in words is "one hundred thirty-nine billion, five hundred sixty-two million, five hundred eighty-one thousand, nine hundred forty-five".