145422423 has 12 divisors (see below), whose sum is σ = 210449928. Its totient is φ = 96765840.

The previous prime is 145422421. The next prime is 145422439. The reversal of 145422423 is 324224541.

It is not a de Polignac number, because 145422423 - 2¹ = 145422421 is a prime.

It is a super-2 number, since 2×145422423² = 42295362222381858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145422421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10065 + ... + 19802.

It is an arithmetic number, because the mean of its divisors is an integer number (17537494).

Almost surely, 2^145422423 is an apocalyptic number.

145422423 is a deficient number, since it is larger than the sum of its proper divisors (65027505).

145422423 is a wasteful number, since it uses less digits than its factorization.

145422423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30414 (or 30411 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 145422423 is about 12059.1219829638. The cubic root of 145422423 is about 525.8684619065.

Adding to 145422423 its reverse (324224541), we get a palindrome (469646964).

The spelling of 145422423 in words is "one hundred forty-five million, four hundred twenty-two thousand, four hundred twenty-three".