152220540 has 48 divisors (see below), whose sum is σ = 439971840. Its totient is φ = 39282240.

The previous prime is 152220539. The next prime is 152220581. The reversal of 152220540 is 45022251.

It is a happy number.

152220540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39060 + ... + 42779.

It is an arithmetic number, because the mean of its divisors is an integer number (9166080).

Almost surely, 2^152220540 is an apocalyptic number.

152220540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152220540 is an abundant number, since it is smaller than the sum of its proper divisors (287751300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152220540 is a wasteful number, since it uses less digits than its factorization.

152220540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81882 (or 81880 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 152220540 is about 12337.7688420557. The cubic root of 152220540 is about 533.9383143548.

Adding to 152220540 its reverse (45022251), we get a palindrome (197242791).

The spelling of 152220540 in words is "one hundred fifty-two million, two hundred twenty thousand, five hundred forty".