85139363 has 4 divisors (see below), whose sum is σ = 85376880. Its totient is φ = 84901848.

The previous prime is 85139357. The next prime is 85139371. The reversal of 85139363 is 36393158.

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 85139363 - 2⁸ = 85139107 is a prime.

It is a super-2 number, since 2×85139363² = 14497422264091538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85139303) 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, 118220 + ... + 118937.

It is an arithmetic number, because the mean of its divisors is an integer number (21344220).

Almost surely, 2^85139363 is an apocalyptic number.

85139363 is a deficient number, since it is larger than the sum of its proper divisors (237517).

85139363 is a wasteful number, since it uses less digits than its factorization.

85139363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237516.

The product of its digits is 58320, while the sum is 38.

The square root of 85139363 is about 9227.0993817125. The cubic root of 85139363 is about 439.9231322332.

The spelling of 85139363 in words is "eighty-five million, one hundred thirty-nine thousand, three hundred sixty-three".