145001222405 has 32 divisors (see below), whose sum is σ = 189635644800. Its totient is φ = 105800078592.

The previous prime is 145001222351. The next prime is 145001222417. The reversal of 145001222405 is 504222100541.

It is not a de Polignac number, because 145001222405 - 2⁶ = 145001222341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1787006 + ... + 1866384.

It is an arithmetic number, because the mean of its divisors is an integer number (5926113900).

Almost surely, 2^145001222405 is an apocalyptic number.

It is an amenable number.

145001222405 is a deficient number, since it is larger than the sum of its proper divisors (44634422395).

145001222405 is a wasteful number, since it uses less digits than its factorization.

145001222405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79733.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 145001222405 its reverse (504222100541), we get a palindrome (649223322946).

The spelling of 145001222405 in words is "one hundred forty-five billion, one million, two hundred twenty-two thousand, four hundred five".