1250164901 has 4 divisors (see below), whose sum is σ = 1273752972. Its totient is φ = 1226576832.

The previous prime is 1250164897. The next prime is 1250164939. The reversal of 1250164901 is 1094610521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1094610521 = 7307 ⋅149803.

It can be written as a sum of positive squares in 2 ways, for example, as 810256225 + 439908676 = 28465^2 + 20974^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250164901 - 2² = 1250164897 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 (1250164301) 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, 11793956 + ... + 11794061.

It is an arithmetic number, because the mean of its divisors is an integer number (318438243).

Almost surely, 2^1250164901 is an apocalyptic number.

It is an amenable number.

1250164901 is a deficient number, since it is larger than the sum of its proper divisors (23588071).

1250164901 is an equidigital number, since it uses as much as digits as its factorization.

1250164901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23588070.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1250164901 is about 35357.6710347274. The cubic root of 1250164901 is about 1077.2647120577.

The spelling of 1250164901 in words is "one billion, two hundred fifty million, one hundred sixty-four thousand, nine hundred one".