1150251401 has 4 divisors (see below), whose sum is σ = 1238732292. Its totient is φ = 1061770512.

The previous prime is 1150251383. The next prime is 1150251407. The reversal of 1150251401 is 1041520511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 359292025 + 790959376 = 18955^2 + 28124^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150251401 - 2⁶ = 1150251337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150251407) 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, 44240426 + ... + 44240451.

It is an arithmetic number, because the mean of its divisors is an integer number (309683073).

Almost surely, 2^1150251401 is an apocalyptic number.

It is an amenable number.

1150251401 is a deficient number, since it is larger than the sum of its proper divisors (88480891).

1150251401 is an equidigital number, since it uses as much as digits as its factorization.

1150251401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88480890.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1150251401 is about 33915.3564185901. The cubic root of 1150251401 is about 1047.7658925950.

Adding to 1150251401 its reverse (1041520511), we get a palindrome (2191771912).

The spelling of 1150251401 in words is "one billion, one hundred fifty million, two hundred fifty-one thousand, four hundred one".