150121540 has 24 divisors (see below), whose sum is σ = 319963392. Its totient is φ = 59151840.

The previous prime is 150121537. The next prime is 150121571. The reversal of 150121540 is 45121051.

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, 54676 + ... + 57355.

It is an arithmetic number, because the mean of its divisors is an integer number (13331808).

Almost surely, 2^150121540 is an apocalyptic number.

150121540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150121540 is an abundant number, since it is smaller than the sum of its proper divisors (169841852).

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

150121540 is a wasteful number, since it uses less digits than its factorization.

150121540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112107 (or 112105 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 150121540 is about 12252.4095589398. The cubic root of 150121540 is about 531.4727519854.

Adding to 150121540 its reverse (45121051), we get a palindrome (195242591).

The spelling of 150121540 in words is "one hundred fifty million, one hundred twenty-one thousand, five hundred forty".