145262905 has 8 divisors (see below), whose sum is σ = 174715200. Its totient is φ = 115943856.

The previous prime is 145262903. The next prime is 145262921. The reversal of 145262905 is 509262541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145262905 - 2¹ = 145262903 is a prime.

It is a super-2 number, since 2×145262905² = 42202623138078050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145262903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30895 + ... + 35284.

It is an arithmetic number, because the mean of its divisors is an integer number (21839400).

Almost surely, 2^145262905 is an apocalyptic number.

It is an amenable number.

145262905 is a deficient number, since it is larger than the sum of its proper divisors (29452295).

145262905 is an equidigital number, since it uses as much as digits as its factorization.

145262905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66623.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 145262905 is about 12052.5061709173. The cubic root of 145262905 is about 525.6761115238.

The spelling of 145262905 in words is "one hundred forty-five million, two hundred sixty-two thousand, nine hundred five".