151222501 has 8 divisors (see below), whose sum is σ = 164671200. Its totient is φ = 138322800.

The previous prime is 151222499. The next prime is 151222523. The reversal of 151222501 is 105222151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151222501 - 2¹ = 151222499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151222301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136675 + ... + 137776.

It is an arithmetic number, because the mean of its divisors is an integer number (20583900).

Almost surely, 2^151222501 is an apocalyptic number.

151222501 is the 5500-th centered decagonal number.

It is an amenable number.

151222501 is a deficient number, since it is larger than the sum of its proper divisors (13448699).

151222501 is a wasteful number, since it uses less digits than its factorization.

151222501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274499.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 151222501 is about 12297.2558320952. The cubic root of 151222501 is about 532.7688266236.

Adding to 151222501 its reverse (105222151), we get a palindrome (256444652).

The spelling of 151222501 in words is "one hundred fifty-one million, two hundred twenty-two thousand, five hundred one".