151211620 has 24 divisors (see below), whose sum is σ = 362908224. Its totient is φ = 51843936.

The previous prime is 151211603. The next prime is 151211629. The reversal of 151211620 is 26112151.

It is not an unprimeable number, because it can be changed into a prime (151211629) by changing a digit.

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, 539902 + ... + 540181.

It is an arithmetic number, because the mean of its divisors is an integer number (15121176).

Almost surely, 2^151211620 is an apocalyptic number.

151211620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151211620 is an abundant number, since it is smaller than the sum of its proper divisors (211696604).

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

151211620 is a wasteful number, since it uses less digits than its factorization.

151211620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080099 (or 1080097 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 151211620 is about 12296.8134083591. The cubic root of 151211620 is about 532.7560481093.

Adding to 151211620 its reverse (26112151), we get a palindrome (177323771).

The spelling of 151211620 in words is "one hundred fifty-one million, two hundred eleven thousand, six hundred twenty".