1250421401 has 8 divisors (see below), whose sum is σ = 1300475520. Its totient is φ = 1201223088.

The previous prime is 1250421379. The next prime is 1250421409. The reversal of 1250421401 is 1041240521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1250421401 - 2¹⁸ = 1250159257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1250421409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210971 + ... + 216816.

It is an arithmetic number, because the mean of its divisors is an integer number (162559440).

Almost surely, 2^1250421401 is an apocalyptic number.

It is an amenable number.

1250421401 is a deficient number, since it is larger than the sum of its proper divisors (50054119).

1250421401 is an equidigital number, since it uses as much as digits as its factorization.

1250421401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427903.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1250421401 is about 35361.2980672373. The cubic root of 1250421401 is about 1077.3383822066.

Adding to 1250421401 its reverse (1041240521), we get a palindrome (2291661922).

The spelling of 1250421401 in words is "one billion, two hundred fifty million, four hundred twenty-one thousand, four hundred one".