152121740 has 24 divisors (see below), whose sum is σ = 319803792. Its totient is φ = 60782400.

The previous prime is 152121727. The next prime is 152121773. The reversal of 152121740 is 47121251.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17402 + ... + 24638.

It is an arithmetic number, because the mean of its divisors is an integer number (13325158).

Almost surely, 2^152121740 is an apocalyptic number.

152121740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152121740 is an abundant number, since it is smaller than the sum of its proper divisors (167682052).

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

152121740 is a wasteful number, since it uses less digits than its factorization.

152121740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297 (or 8295 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 152121740 is about 12333.7642267071. The cubic root of 152121740 is about 533.8227703271.

Adding to 152121740 its reverse (47121251), we get a palindrome (199242991).

The spelling of 152121740 in words is "one hundred fifty-two million, one hundred twenty-one thousand, seven hundred forty".