145220059 has 4 divisors (see below), whose sum is σ = 152863240. Its totient is φ = 137576880.

The previous prime is 145220057. The next prime is 145220087. The reversal of 145220059 is 950022541.

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 145220059 - 2¹ = 145220057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145220057) 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, 3821562 + ... + 3821599.

It is an arithmetic number, because the mean of its divisors is an integer number (38215810).

Almost surely, 2^145220059 is an apocalyptic number.

145220059 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145220059 is a deficient number, since it is larger than the sum of its proper divisors (7643181).

145220059 is an equidigital number, since it uses as much as digits as its factorization.

145220059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643180.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 145220059 is about 12050.7285671863. The cubic root of 145220059 is about 525.6244228667.

The spelling of 145220059 in words is "one hundred forty-five million, two hundred twenty thousand, fifty-nine".