145742586 has 32 divisors (see below), whose sum is σ = 319204800. Its totient is φ = 43994880.

The previous prime is 145742579. The next prime is 145742591. The reversal of 145742586 is 685247541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13650 + ... + 21858.

It is an arithmetic number, because the mean of its divisors is an integer number (9975150).

Almost surely, 2^145742586 is an apocalyptic number.

145742586 is an abundant number, since it is smaller than the sum of its proper divisors (173462214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145742586 is a wasteful number, since it uses less digits than its factorization.

145742586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494.

The product of its digits is 268800, while the sum is 42.

The square root of 145742586 is about 12072.3894072383. The cubic root of 145742586 is about 526.2540975715.

The spelling of 145742586 in words is "one hundred forty-five million, seven hundred forty-two thousand, five hundred eighty-six".