139349601 has 12 divisors (see below), whose sum is σ = 203831680. Its totient is φ = 91723320.

The previous prime is 139349593. The next prime is 139349603. The reversal of 139349601 is 106943931.

139349601 is a `hidden beast` number, since 1 + 3 + 9 + 3 + 49 + 601 = 666.

It is not a de Polignac number, because 139349601 - 2³ = 139349593 is a prime.

It is a super-2 number, since 2×139349601² = 38836622597718402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139349603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97285 + ... + 98706.

Almost surely, 2^139349601 is an apocalyptic number.

It is an amenable number.

139349601 is a deficient number, since it is larger than the sum of its proper divisors (64482079).

139349601 is a wasteful number, since it uses less digits than its factorization.

139349601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196076 (or 196073 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 139349601 is about 11804.6431966409. The cubic root of 139349601 is about 518.4440682023. Note that the first 3 decimals are identical.

The spelling of 139349601 in words is "one hundred thirty-nine million, three hundred forty-nine thousand, six hundred one".