1305235141 has 8 divisors (see below), whose sum is σ = 1495243904. Its totient is φ = 1116113040.

The previous prime is 1305235069. The next prime is 1305235147. The reversal of 1305235141 is 1415325031.

It is a happy number.

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

It is not a de Polignac number, because 1305235141 - 2¹⁵ = 1305202373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305235147) 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, 218505 + ... + 224398.

It is an arithmetic number, because the mean of its divisors is an integer number (186905488).

Almost surely, 2^1305235141 is an apocalyptic number.

It is an amenable number.

1305235141 is a deficient number, since it is larger than the sum of its proper divisors (190008763).

1305235141 is an equidigital number, since it uses as much as digits as its factorization.

1305235141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443331.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1305235141 is about 36128.0381559807. The cubic root of 1305235141 is about 1092.8559454027.

The spelling of 1305235141 in words is "one billion, three hundred five million, two hundred thirty-five thousand, one hundred forty-one".