1153671401 has 4 divisors (see below), whose sum is σ = 1156174404. Its totient is φ = 1151168400.

The previous prime is 1153671397. The next prime is 1153671437. The reversal of 1153671401 is 1041763511.

It is a happy number.

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 362712025 + 790959376 = 19045^2 + 28124^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153671401 - 2² = 1153671397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153671461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250810 + ... + 1251731.

It is an arithmetic number, because the mean of its divisors is an integer number (289043601).

Almost surely, 2^1153671401 is an apocalyptic number.

It is an amenable number.

1153671401 is a deficient number, since it is larger than the sum of its proper divisors (2503003).

1153671401 is an equidigital number, since it uses as much as digits as its factorization.

1153671401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503002.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 1153671401 is about 33965.7386346889. The cubic root of 1153671401 is about 1048.8032929931.

The spelling of 1153671401 in words is "one billion, one hundred fifty-three million, six hundred seventy-one thousand, four hundred one".