145745742 has 16 divisors (see below), whose sum is σ = 291623040. Its totient is φ = 48559992.

The previous prime is 145745729. The next prime is 145745749. The reversal of 145745742 is 247547541.

It is a super-2 number, since 2×145745742² = 42483642622261128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145745742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145745749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14559 + ... + 22437.

It is an arithmetic number, because the mean of its divisors is an integer number (18226440).

Almost surely, 2^145745742 is an apocalyptic number.

145745742 is an abundant number, since it is smaller than the sum of its proper divisors (145877298).

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

145745742 is a wasteful number, since it uses less digits than its factorization.

145745742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10967.

The product of its digits is 156800, while the sum is 39.

The square root of 145745742 is about 12072.5201180201. The cubic root of 145745742 is about 526.2578961546.

The spelling of 145745742 in words is "one hundred forty-five million, seven hundred forty-five thousand, seven hundred forty-two".