85374151 has 2 divisors, whose sum is σ = 85374152. Its totient is φ = 85374150.

The previous prime is 85374139. The next prime is 85374161. The reversal of 85374151 is 15147358.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85374151 - 2¹⁵ = 85341383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85374101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42687075 + 42687076.

It is an arithmetic number, because the mean of its divisors is an integer number (42687076).

Almost surely, 2^85374151 is an apocalyptic number.

85374151 is a deficient number, since it is larger than the sum of its proper divisors (1).

85374151 is an equidigital number, since it uses as much as digits as its factorization.

85374151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 34.

The square root of 85374151 is about 9239.8133639160. The cubic root of 85374151 is about 440.3271516662.

The spelling of 85374151 in words is "eighty-five million, three hundred seventy-four thousand, one hundred fifty-one".