145090297 has 4 divisors (see below), whose sum is σ = 158280336. Its totient is φ = 131900260.

The previous prime is 145090243. The next prime is 145090301. The reversal of 145090297 is 792090541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145090297 - 2¹⁵ = 145057529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145090207) 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, 6595003 + ... + 6595024.

It is an arithmetic number, because the mean of its divisors is an integer number (39570084).

Almost surely, 2^145090297 is an apocalyptic number.

It is an amenable number.

145090297 is a deficient number, since it is larger than the sum of its proper divisors (13190039).

145090297 is a wasteful number, since it uses less digits than its factorization.

145090297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13190038.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 145090297 is about 12045.3433741010. The cubic root of 145090297 is about 525.4678182346.

The spelling of 145090297 in words is "one hundred forty-five million, ninety thousand, two hundred ninety-seven".