1613145241 has 4 divisors (see below), whose sum is σ = 1613422800. Its totient is φ = 1612867684.

The previous prime is 1613145229. The next prime is 1613145251. The reversal of 1613145241 is 1425413161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1613145241 - 2²⁵ = 1579590809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613145251) 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, 129871 + ... + 141748.

It is an arithmetic number, because the mean of its divisors is an integer number (403355700).

Almost surely, 2^1613145241 is an apocalyptic number.

It is an amenable number.

1613145241 is a deficient number, since it is larger than the sum of its proper divisors (277559).

1613145241 is an equidigital number, since it uses as much as digits as its factorization.

1613145241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277558.

The product of its digits is 2880, while the sum is 28.

The square root of 1613145241 is about 40163.9793969671. The cubic root of 1613145241 is about 1172.8014396739.

The spelling of 1613145241 in words is "one billion, six hundred thirteen million, one hundred forty-five thousand, two hundred forty-one".