1250301961 has 2 divisors, whose sum is σ = 1250301962. Its totient is φ = 1250301960.

The previous prime is 1250301937. The next prime is 1250301989. The reversal of 1250301961 is 1691030521.

It is the 14436-th star number.

It is an a-pointer prime, because the next prime (1250301989) can be obtained adding 1250301961 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646125561 + 604176400 = 25419^2 + 24580^2 .

It is an emirp because it is prime and its reverse (1691030521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1250301961 - 2⁹ = 1250301449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1250301901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625150980 + 625150981.

It is an arithmetic number, because the mean of its divisors is an integer number (625150981).

Almost surely, 2^1250301961 is an apocalyptic number.

It is an amenable number.

1250301961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250301961 is an equidigital number, since it uses as much as digits as its factorization.

1250301961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1250301961 is about 35359.6091748764. The cubic root of 1250301961 is about 1077.3040787327.

The spelling of 1250301961 in words is "one billion, two hundred fifty million, three hundred one thousand, nine hundred sixty-one".