145235507 has 2 divisors, whose sum is σ = 145235508. Its totient is φ = 145235506.

The previous prime is 145235483. The next prime is 145235533. The reversal of 145235507 is 705532541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145235507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145235537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72617753 + 72617754.

It is an arithmetic number, because the mean of its divisors is an integer number (72617754).

Almost surely, 2^145235507 is an apocalyptic number.

145235507 is a deficient number, since it is larger than the sum of its proper divisors (1).

145235507 is an equidigital number, since it uses as much as digits as its factorization.

145235507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 145235507 is about 12051.3695072386. The cubic root of 145235507 is about 525.6430602327.

The spelling of 145235507 in words is "one hundred forty-five million, two hundred thirty-five thousand, five hundred seven".