125514200261 has 4 divisors (see below), whose sum is σ = 125518115232. Its totient is φ = 125510285292.

The previous prime is 125514200183. The next prime is 125514200269. The reversal of 125514200261 is 162002415521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 162002415521 = 233 ⋅695289337.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125514200261 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 (125514200269) 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, 1908995 + ... + 1973648.

It is an arithmetic number, because the mean of its divisors is an integer number (31379528808).

Almost surely, 2^125514200261 is an apocalyptic number.

It is an amenable number.

125514200261 is a deficient number, since it is larger than the sum of its proper divisors (3914971).

125514200261 is an equidigital number, since it uses as much as digits as its factorization.

125514200261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914970.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 125514200261 its reverse (162002415521), we get a palindrome (287516615782).

The spelling of 125514200261 in words is "one hundred twenty-five billion, five hundred fourteen million, two hundred thousand, two hundred sixty-one".