126590101 has 4 divisors (see below), whose sum is σ = 138098304. Its totient is φ = 115081900.

The previous prime is 126590099. The next prime is 126590119. The reversal of 126590101 is 101095621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126590101 - 2¹ = 126590099 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 (126590131) 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, 5754085 + ... + 5754106.

It is an arithmetic number, because the mean of its divisors is an integer number (34524576).

Almost surely, 2^126590101 is an apocalyptic number.

126590101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126590101 is a deficient number, since it is larger than the sum of its proper divisors (11508203).

126590101 is a wasteful number, since it uses less digits than its factorization.

126590101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11508202.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 126590101 is about 11251.2266442375. The cubic root of 126590101 is about 502.1112077238. Note that the first 3 decimals are identical.

The spelling of 126590101 in words is "one hundred twenty-six million, five hundred ninety thousand, one hundred one".