145222429 has 8 divisors (see below), whose sum is σ = 158515488. Its totient is φ = 131944560.

The previous prime is 145222393. The next prime is 145222463. The reversal of 145222429 is 924222541.

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

It is not a de Polignac number, because 145222429 - 2⁹ = 145221917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145222429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145222489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27339 + ... + 32215.

It is an arithmetic number, because the mean of its divisors is an integer number (19814436).

Almost surely, 2^145222429 is an apocalyptic number.

It is an amenable number.

145222429 is a deficient number, since it is larger than the sum of its proper divisors (13293059).

145222429 is a wasteful number, since it uses less digits than its factorization.

145222429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7595.

The product of its digits is 11520, while the sum is 31.

The square root of 145222429 is about 12050.8269010886. The cubic root of 145222429 is about 525.6272822584.

The spelling of 145222429 in words is "one hundred forty-five million, two hundred twenty-two thousand, four hundred twenty-nine".