40223153 has 2 divisors, whose sum is σ = 40223154. Its totient is φ = 40223152.

The previous prime is 40223143. The next prime is 40223233. The reversal of 40223153 is 35132204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38837824 + 1385329 = 6232^2 + 1177^2 .

It is a cyclic number.

It is not a de Polignac number, because 40223153 - 2²² = 36028849 is a prime.

It is a super-2 number, since 2×40223153² = 3235804074522818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40223123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111576 + 20111577.

It is an arithmetic number, because the mean of its divisors is an integer number (20111577).

Almost surely, 2^40223153 is an apocalyptic number.

It is an amenable number.

40223153 is a deficient number, since it is larger than the sum of its proper divisors (1).

40223153 is an equidigital number, since it uses as much as digits as its factorization.

40223153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40223153 is about 6342.1725772798. The cubic root of 40223153 is about 342.6299874230.

Adding to 40223153 its reverse (35132204), we get a palindrome (75355357).

The spelling of 40223153 in words is "forty million, two hundred twenty-three thousand, one hundred fifty-three".