153440612 has 24 divisors (see below), whose sum is σ = 290233272. Its totient is φ = 70560000.

The previous prime is 153440587. The next prime is 153440621. The reversal of 153440612 is 216044351.

It can be written as a sum of positive squares in 4 ways, for example, as 4990756 + 148449856 = 2234^2 + 12184^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9362 + ... + 19862.

It is an arithmetic number, because the mean of its divisors is an integer number (12093053).

Almost surely, 2^153440612 is an apocalyptic number.

It is an amenable number.

153440612 is a deficient number, since it is larger than the sum of its proper divisors (136792660).

153440612 is a wasteful number, since it uses less digits than its factorization.

153440612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10799 (or 10797 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 153440612 is about 12387.1147568754. The cubic root of 153440612 is about 535.3610536298.

Adding to 153440612 its reverse (216044351), we get a palindrome (369484963).

The spelling of 153440612 in words is "one hundred fifty-three million, four hundred forty thousand, six hundred twelve".