61598119 has 4 divisors (see below), whose sum is σ = 67197960. Its totient is φ = 55998280.

The previous prime is 61598111. The next prime is 61598129. The reversal of 61598119 is 91189516.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61598119 - 2³ = 61598111 is a prime.

It is a super-2 number, since 2×61598119² = 7588656528676322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61598111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2799904 + ... + 2799925.

It is an arithmetic number, because the mean of its divisors is an integer number (16799490).

Almost surely, 2^61598119 is an apocalyptic number.

61598119 is a deficient number, since it is larger than the sum of its proper divisors (5599841).

61598119 is a wasteful number, since it uses less digits than its factorization.

61598119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5599840.

The product of its digits is 19440, while the sum is 40.

The square root of 61598119 is about 7848.4469164288. The cubic root of 61598119 is about 394.9321445156.

The spelling of 61598119 in words is "sixty-one million, five hundred ninety-eight thousand, one hundred nineteen".