613441745 has 16 divisors (see below), whose sum is σ = 842797440. Its totient is φ = 419892864.

The previous prime is 613441739. The next prime is 613441783. The reversal of 613441745 is 547144316.

It is a cyclic number.

It is not a de Polignac number, because 613441745 - 2⁴ = 613441729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4514 + ... + 35316.

It is an arithmetic number, because the mean of its divisors is an integer number (52674840).

Almost surely, 2^613441745 is an apocalyptic number.

It is an amenable number.

613441745 is a deficient number, since it is larger than the sum of its proper divisors (229355695).

613441745 is a wasteful number, since it uses less digits than its factorization.

613441745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31384.

The product of its digits is 40320, while the sum is 35.

The square root of 613441745 is about 24767.7561559379. The cubic root of 613441745 is about 849.6846558036.

The spelling of 613441745 in words is "six hundred thirteen million, four hundred forty-one thousand, seven hundred forty-five".