145290527 has 4 divisors (see below), whose sum is σ = 149217336. Its totient is φ = 141363720.

The previous prime is 145290503. The next prime is 145290533. The reversal of 145290527 is 725092541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145290527 - 2⁶ = 145290463 is a prime.

It is a super-2 number, since 2×145290527² = 42218674471875458, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145290547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963349 + ... + 1963422.

It is an arithmetic number, because the mean of its divisors is an integer number (37304334).

Almost surely, 2^145290527 is an apocalyptic number.

145290527 is a deficient number, since it is larger than the sum of its proper divisors (3926809).

145290527 is an equidigital number, since it uses as much as digits as its factorization.

145290527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926808.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 145290527 is about 12053.6520192015. The cubic root of 145290527 is about 525.7094288283.

The spelling of 145290527 in words is "one hundred forty-five million, two hundred ninety thousand, five hundred twenty-seven".