85081492 has 6 divisors (see below), whose sum is σ = 148892618. Its totient is φ = 42540744.

The previous prime is 85081489. The next prime is 85081511. The reversal of 85081492 is 29418058.

It can be written as a sum of positive squares in only one way, i.e., 84382596 + 698896 = 9186^2 + 836^2 .

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, 10635183 + ... + 10635190.

Almost surely, 2^85081492 is an apocalyptic number.

It is an amenable number.

85081492 is a deficient number, since it is larger than the sum of its proper divisors (63811126).

85081492 is a wasteful number, since it uses less digits than its factorization.

85081492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21270377 (or 21270375 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 85081492 is about 9223.9629227355. The cubic root of 85081492 is about 439.8234346661.

It can be divided in two parts, 8508 and 1492, that added together give a 4-th power (10000 = 10⁴).

The spelling of 85081492 in words is "eighty-five million, eighty-one thousand, four hundred ninety-two".