151226651 has 4 divisors (see below), whose sum is σ = 152228304. Its totient is φ = 150225000.

The previous prime is 151226627. The next prime is 151226687. The reversal of 151226651 is 156622151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156622151 = 7 ⋅22374593.

It is a cyclic number.

It is not a de Polignac number, because 151226651 - 2¹⁸ = 150964507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151220651) 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 3 ways as a sum of consecutive naturals, for example, 500600 + ... + 500901.

It is an arithmetic number, because the mean of its divisors is an integer number (38057076).

Almost surely, 2^151226651 is an apocalyptic number.

151226651 is a deficient number, since it is larger than the sum of its proper divisors (1001653).

151226651 is a wasteful number, since it uses less digits than its factorization.

151226651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001652.

The product of its digits is 3600, while the sum is 29.

The square root of 151226651 is about 12297.4245677703. The cubic root of 151226651 is about 532.7737001717.

The spelling of 151226651 in words is "one hundred fifty-one million, two hundred twenty-six thousand, six hundred fifty-one".