151221234 has 16 divisors (see below), whose sum is σ = 303700320. Its totient is φ = 50197440.

The previous prime is 151221229. The next prime is 151221277. The reversal of 151221234 is 432122151.

151221234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×151221234² = 45735723224965512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 151221234.

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, 50844 + ... + 53735.

It is an arithmetic number, because the mean of its divisors is an integer number (18981270).

Almost surely, 2^151221234 is an apocalyptic number.

151221234 is an abundant number, since it is smaller than the sum of its proper divisors (152479086).

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

151221234 is a wasteful number, since it uses less digits than its factorization.

151221234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104825.

The product of its digits is 480, while the sum is 21.

The square root of 151221234 is about 12297.2043164290. The cubic root of 151221234 is about 532.7673387057.

Adding to 151221234 its reverse (432122151), we get a palindrome (583343385).

The spelling of 151221234 in words is "one hundred fifty-one million, two hundred twenty-one thousand, two hundred thirty-four".