36781142 has 4 divisors (see below), whose sum is σ = 55171716. Its totient is φ = 18390570.

The previous prime is 36781133. The next prime is 36781153. The reversal of 36781142 is 24118763.

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

It is a junction number, because it is equal to n+sod(n) for n = 36781099 and 36781108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9195284 + ... + 9195287.

It is an arithmetic number, because the mean of its divisors is an integer number (13792929).

Almost surely, 2^36781142 is an apocalyptic number.

36781142 is a deficient number, since it is larger than the sum of its proper divisors (18390574).

36781142 is a wasteful number, since it uses less digits than its factorization.

36781142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18390573.

The product of its digits is 8064, while the sum is 32.

The square root of 36781142 is about 6064.7458314426. The cubic root of 36781142 is about 332.5638733831.

The spelling of 36781142 in words is "thirty-six million, seven hundred eighty-one thousand, one hundred forty-two".