1250540101 has 2 divisors, whose sum is σ = 1250540102. Its totient is φ = 1250540100.

The previous prime is 1250540099. The next prime is 1250540131. The reversal of 1250540101 is 1010450521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1171419076 + 79121025 = 34226^2 + 8895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250540101 - 2¹ = 1250540099 is a prime.

Together with 1250540099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250540131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625270050 + 625270051.

It is an arithmetic number, because the mean of its divisors is an integer number (625270051).

Almost surely, 2^1250540101 is an apocalyptic number.

It is an amenable number.

1250540101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250540101 is an equidigital number, since it uses as much as digits as its factorization.

1250540101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1250540101 is about 35362.9764160202. The cubic root of 1250540101 is about 1077.3724709865.

Adding to 1250540101 its reverse (1010450521), we get a palindrome (2260990622).

The spelling of 1250540101 in words is "one billion, two hundred fifty million, five hundred forty thousand, one hundred one".