151221068 has 12 divisors (see below), whose sum is σ = 264732552. Its totient is φ = 75583200.

The previous prime is 151221061. The next prime is 151221073. The reversal of 151221068 is 860122151.

It is a super-2 number, since 2×151221068² = 45735622814121248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151221061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10496 + ... + 20312.

It is an arithmetic number, because the mean of its divisors is an integer number (22061046).

Almost surely, 2^151221068 is an apocalyptic number.

It is an amenable number.

151221068 is a deficient number, since it is larger than the sum of its proper divisors (113511484).

151221068 is a wasteful number, since it uses less digits than its factorization.

151221068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13672 (or 13670 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 151221068 is about 12297.1975669256. The cubic root of 151221068 is about 532.7671437608.

The spelling of 151221068 in words is "one hundred fifty-one million, two hundred twenty-one thousand, sixty-eight".