36161599 has 4 divisors (see below), whose sum is σ = 36446464. Its totient is φ = 35876736.

The previous prime is 36161597. The next prime is 36161603. The reversal of 36161599 is 99516163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99516163 = 4513 ⋅22051.

It is a cyclic number.

It is not a de Polignac number, because 36161599 - 2¹ = 36161597 is a prime.

It is a super-2 number, since 2×36161599² = 2615322484473602, 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 (36161591) 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, 142242 + ... + 142495.

It is an arithmetic number, because the mean of its divisors is an integer number (9111616).

Almost surely, 2^36161599 is an apocalyptic number.

36161599 is a deficient number, since it is larger than the sum of its proper divisors (284865).

36161599 is a wasteful number, since it uses less digits than its factorization.

36161599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284864.

The product of its digits is 43740, while the sum is 40.

The square root of 36161599 is about 6013.4515047517. The cubic root of 36161599 is about 330.6860505613.

The spelling of 36161599 in words is "thirty-six million, one hundred sixty-one thousand, five hundred ninety-nine".