613601142 has 128 divisors (see below), whose sum is σ = 1592414208. Its totient is φ = 153014400.

The previous prime is 613601129. The next prime is 613601161. The reversal of 613601142 is 241106316.

It is a super-2 number, since 2×613601142² = 753012722927408328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1330792 + ... + 1331252.

It is an arithmetic number, because the mean of its divisors is an integer number (12440736).

Almost surely, 2^613601142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613601142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796207104).

613601142 is an abundant number, since it is smaller than the sum of its proper divisors (978813066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613601142 is a wasteful number, since it uses less digits than its factorization.

613601142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 613601142 is about 24770.9737798093. The cubic root of 613601142 is about 849.7582435877.

Adding to 613601142 its reverse (241106316), we get a palindrome (854707458).

The spelling of 613601142 in words is "six hundred thirteen million, six hundred one thousand, one hundred forty-two".