85147645 has 32 divisors (see below), whose sum is σ = 124260480. Its totient is φ = 55203840.

The previous prime is 85147637. The next prime is 85147651. The reversal of 85147645 is 54674158.

85147645 = 8² + 9² + ... + 634².

It is not a de Polignac number, because 85147645 - 2³ = 85147637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85147598 and 85147607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15369 + ... + 20161.

It is an arithmetic number, because the mean of its divisors is an integer number (3883140).

Almost surely, 2^85147645 is an apocalyptic number.

85147645 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85147645 is a deficient number, since it is larger than the sum of its proper divisors (39112835).

85147645 is a wasteful number, since it uses less digits than its factorization.

85147645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845.

The product of its digits is 134400, while the sum is 40.

The square root of 85147645 is about 9227.5481575552. The cubic root of 85147645 is about 439.9373963962.

The spelling of 85147645 in words is "eighty-five million, one hundred forty-seven thousand, six hundred forty-five".