139530145969 has 8 divisors (see below), whose sum is σ = 139832100000. Its totient is φ = 139228282272.

The previous prime is 139530145943. The next prime is 139530145991. The reversal of 139530145969 is 969541035931.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139530145969 is a prime.

It is a super-2 number, since 2×139530145969² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139530155969) 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, 3738402 + ... + 3775540.

It is an arithmetic number, because the mean of its divisors is an integer number (17479012500).

Almost surely, 2^139530145969 is an apocalyptic number.

It is an amenable number.

139530145969 is a deficient number, since it is larger than the sum of its proper divisors (301954031).

139530145969 is an equidigital number, since it uses as much as digits as its factorization.

139530145969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45167.

The product of its (nonzero) digits is 3936600, while the sum is 55.

The spelling of 139530145969 in words is "one hundred thirty-nine billion, five hundred thirty million, one hundred forty-five thousand, nine hundred sixty-nine".