139701501 has 6 divisors (see below), whose sum is σ = 201791070. Its totient is φ = 93134328.

The previous prime is 139701421. The next prime is 139701581. The reversal of 139701501 is 105107931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (139701421) and next prime (139701581).

It can be written as a sum of positive squares in only one way, i.e., 121220100 + 18481401 = 11010^2 + 4299^2 .

It is not a de Polignac number, because 139701501 - 2⁹ = 139700989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139701581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7761186 + ... + 7761203.

It is an arithmetic number, because the mean of its divisors is an integer number (33631845).

Almost surely, 2^139701501 is an apocalyptic number.

It is an amenable number.

139701501 is a deficient number, since it is larger than the sum of its proper divisors (62089569).

139701501 is a wasteful number, since it uses less digits than its factorization.

139701501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15522395 (or 15522392 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 139701501 is about 11819.5389503990. The cubic root of 139701501 is about 518.8801108578.

The spelling of 139701501 in words is "one hundred thirty-nine million, seven hundred one thousand, five hundred one".