240623153 has 2 divisors, whose sum is σ = 240623154. Its totient is φ = 240623152.

The previous prime is 240623081. The next prime is 240623161. The reversal of 240623153 is 351326042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185150449 + 55472704 = 13607^2 + 7448^2 .

It is a cyclic number.

It is not a de Polignac number, because 240623153 - 2²² = 236428849 is a prime.

It is a super-2 number, since 2×240623153² = 115799003519322818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240625153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120311576 + 120311577.

It is an arithmetic number, because the mean of its divisors is an integer number (120311577).

Almost surely, 2^240623153 is an apocalyptic number.

It is an amenable number.

240623153 is a deficient number, since it is larger than the sum of its proper divisors (1).

240623153 is an equidigital number, since it uses as much as digits as its factorization.

240623153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 240623153 is about 15512.0325231737. The cubic root of 240623153 is about 621.9838922570.

Adding to 240623153 its reverse (351326042), we get a palindrome (591949195).

The spelling of 240623153 in words is "two hundred forty million, six hundred twenty-three thousand, one hundred fifty-three".