85742145 has 40 divisors (see below), whose sum is σ = 155003904. Its totient is φ = 45341856.

The previous prime is 85742143. The next prime is 85742159. The reversal of 85742145 is 54124758.

It is not a de Polignac number, because 85742145 - 2¹ = 85742143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85742141) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50602 + ... + 52268.

Almost surely, 2^85742145 is an apocalyptic number.

It is an amenable number.

85742145 is a deficient number, since it is larger than the sum of its proper divisors (69261759).

85742145 is a wasteful number, since it uses less digits than its factorization.

85742145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1802 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 85742145 is about 9259.7054488790. The cubic root of 85742145 is about 440.9589021815.

The spelling of 85742145 in words is "eighty-five million, seven hundred forty-two thousand, one hundred forty-five".