613021245 has 16 divisors (see below), whose sum is σ = 982004352. Its totient is φ = 326554560.

The previous prime is 613021243. The next prime is 613021261. The reversal of 613021245 is 542120316.

It is not a de Polignac number, because 613021245 - 2¹ = 613021243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613021243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11161 + ... + 36750.

It is an arithmetic number, because the mean of its divisors is an integer number (61375272).

Almost surely, 2^613021245 is an apocalyptic number.

It is an amenable number.

613021245 is a deficient number, since it is larger than the sum of its proper divisors (368983107).

613021245 is a wasteful number, since it uses less digits than its factorization.

613021245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48772.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 613021245 is about 24759.2658412967. The cubic root of 613021245 is about 849.4904650918.

The spelling of 613021245 in words is "six hundred thirteen million, twenty-one thousand, two hundred forty-five".