139262901 has 16 divisors (see below), whose sum is σ = 193964160. Its totient is φ = 88764480.

The previous prime is 139262899. The next prime is 139262923. The reversal of 139262901 is 109262931.

It is not a de Polignac number, because 139262901 - 2¹ = 139262899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139262801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (12122760).

Almost surely, 2^139262901 is an apocalyptic number.

It is an amenable number.

139262901 is a deficient number, since it is larger than the sum of its proper divisors (54701259).

139262901 is a wasteful number, since it uses less digits than its factorization.

139262901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15676.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 139262901 is about 11800.9703414592. The cubic root of 139262901 is about 518.3365247153.

The spelling of 139262901 in words is "one hundred thirty-nine million, two hundred sixty-two thousand, nine hundred one".