145523042 has 12 divisors (see below), whose sum is σ = 253923030. Its totient is φ = 62366976.

The previous prime is 145523041. The next prime is 145523069. The reversal of 145523042 is 240325541.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 136165561 + 9357481 = 11669^2 + 3059^2 .

It is not an unprimeable number, because it can be changed into a prime (145523041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 742367 + ... + 742562.

Almost surely, 2^145523042 is an apocalyptic number.

145523042 is a deficient number, since it is larger than the sum of its proper divisors (108399988).

145523042 is a wasteful number, since it uses less digits than its factorization.

145523042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484945 (or 1484938 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 145523042 is about 12063.2931656327. The cubic root of 145523042 is about 525.9897182182.

Adding to 145523042 its reverse (240325541), we get a palindrome (385848583).

The spelling of 145523042 in words is "one hundred forty-five million, five hundred twenty-three thousand, forty-two".