421022153 has 16 divisors (see below), whose sum is σ = 476534016. Its totient is φ = 369768960.

The previous prime is 421022137. The next prime is 421022179. The reversal of 421022153 is 351220124.

It is a cyclic number.

It is not a de Polignac number, because 421022153 - 2⁴ = 421022137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421022113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2900 + ... + 29162.

It is an arithmetic number, because the mean of its divisors is an integer number (29783376).

Almost surely, 2^421022153 is an apocalyptic number.

It is an amenable number.

421022153 is a deficient number, since it is larger than the sum of its proper divisors (55511863).

421022153 is a wasteful number, since it uses less digits than its factorization.

421022153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26344.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 421022153 is about 20518.8243571604. The cubic root of 421022153 is about 749.4942682424.

Adding to 421022153 its reverse (351220124), we get a palindrome (772242277).

The spelling of 421022153 in words is "four hundred twenty-one million, twenty-two thousand, one hundred fifty-three".