1155350401 has 8 divisors (see below), whose sum is σ = 1195969320. Its totient is φ = 1114783488.

The previous prime is 1155350389. The next prime is 1155350407. The reversal of 1155350401 is 1040535511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 252047376 + 903303025 = 15876^2 + 30055^2 .

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 1155350401 - 2²³ = 1146961793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155350407) 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, 35305 + ... + 59641.

It is an arithmetic number, because the mean of its divisors is an integer number (149496165).

Almost surely, 2^1155350401 is an apocalyptic number.

It is an amenable number.

1155350401 is a deficient number, since it is larger than the sum of its proper divisors (40618919).

1155350401 is a wasteful number, since it uses less digits than its factorization.

1155350401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26003.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1155350401 is about 33990.4457311169. The cubic root of 1155350401 is about 1049.3118396363.

Adding to 1155350401 its reverse (1040535511), we get a palindrome (2195885912).

The spelling of 1155350401 in words is "one billion, one hundred fifty-five million, three hundred fifty thousand, four hundred one".