139073701 has 4 divisors (see below), whose sum is σ = 149771692. Its totient is φ = 128375712.

The previous prime is 139073689. The next prime is 139073723. The reversal of 139073701 is 107370931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 107370931 = 5791 ⋅18541.

It can be written as a sum of positive squares in 2 ways, for example, as 6225025 + 132848676 = 2495^2 + 11526^2 .

It is a cyclic number.

It is not a de Polignac number, because 139073701 - 2⁷ = 139073573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139073731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348976 + ... + 5349001.

It is an arithmetic number, because the mean of its divisors is an integer number (37442923).

Almost surely, 2^139073701 is an apocalyptic number.

It is an amenable number.

139073701 is a deficient number, since it is larger than the sum of its proper divisors (10697991).

139073701 is a wasteful number, since it uses less digits than its factorization.

139073701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10697990.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 139073701 is about 11792.9513269580. The cubic root of 139073701 is about 518.1016841966.

The spelling of 139073701 in words is "one hundred thirty-nine million, seventy-three thousand, seven hundred one".