151224109 has 2 divisors, whose sum is σ = 151224110. Its totient is φ = 151224108.

The previous prime is 151224037. The next prime is 151224119. The reversal of 151224109 is 901422151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96138025 + 55086084 = 9805^2 + 7422^2 .

It is a cyclic number.

It is not a de Polignac number, because 151224109 - 2⁷ = 151223981 is a prime.

It is a super-2 number, since 2×151224109² = 45737462285687762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151224119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75612054 + 75612055.

It is an arithmetic number, because the mean of its divisors is an integer number (75612055).

Almost surely, 2^151224109 is an apocalyptic number.

It is an amenable number.

151224109 is a deficient number, since it is larger than the sum of its proper divisors (1).

151224109 is an equidigital number, since it uses as much as digits as its factorization.

151224109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 151224109 is about 12297.3212123617. The cubic root of 151224109 is about 532.7707149872.

The spelling of 151224109 in words is "one hundred fifty-one million, two hundred twenty-four thousand, one hundred nine".