1250213401 has 4 divisors (see below), whose sum is σ = 1250313232. Its totient is φ = 1250113572.

The previous prime is 1250213389. The next prime is 1250213411. The reversal of 1250213401 is 1043120521.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1043120521 = 67 ⋅15568963.

It is a cyclic number.

It is not a de Polignac number, because 1250213401 - 2¹⁷ = 1250082329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1250213411) 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, 27891 + ... + 57256.

It is an arithmetic number, because the mean of its divisors is an integer number (312578308).

Almost surely, 2^1250213401 is an apocalyptic number.

It is an amenable number.

1250213401 is a deficient number, since it is larger than the sum of its proper divisors (99831).

1250213401 is an equidigital number, since it uses as much as digits as its factorization.

1250213401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99830.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1250213401 is about 35358.3568764161. The cubic root of 1250213401 is about 1077.2786426635.

Adding to 1250213401 its reverse (1043120521), we get a palindrome (2293333922).

The spelling of 1250213401 in words is "one billion, two hundred fifty million, two hundred thirteen thousand, four hundred one".