150421020 has 24 divisors (see below), whose sum is σ = 421179024. Its totient is φ = 40112256.

The previous prime is 150420979. The next prime is 150421027. The reversal of 150421020 is 20124051.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150421027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253449 + ... + 1253568.

It is an arithmetic number, because the mean of its divisors is an integer number (17549126).

Almost surely, 2^150421020 is an apocalyptic number.

150421020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150421020 is an abundant number, since it is smaller than the sum of its proper divisors (270758004).

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

150421020 is a wasteful number, since it uses less digits than its factorization.

150421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507029 (or 2507027 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 150421020 is about 12264.6247394692. The cubic root of 150421020 is about 531.8259318962.

Adding to 150421020 its reverse (20124051), we get a palindrome (170545071).

The spelling of 150421020 in words is "one hundred fifty million, four hundred twenty-one thousand, twenty".