151220235 has 16 divisors (see below), whose sum is σ = 242113536. Its totient is φ = 80597088.

The previous prime is 151220231. The next prime is 151220317. The reversal of 151220235 is 532022151.

It is not a de Polignac number, because 151220235 - 2² = 151220231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151220231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31782 + ... + 36228.

It is an arithmetic number, because the mean of its divisors is an integer number (15132096).

Almost surely, 2^151220235 is an apocalyptic number.

151220235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151220235 is a deficient number, since it is larger than the sum of its proper divisors (90893301).

151220235 is a wasteful number, since it uses less digits than its factorization.

151220235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 151220235 is about 12297.1636973735. The cubic root of 151220235 is about 532.7661655112.

Adding to 151220235 its reverse (532022151), we get a palindrome (683242386).

The spelling of 151220235 in words is "one hundred fifty-one million, two hundred twenty thousand, two hundred thirty-five".