151412809 has 4 divisors (see below), whose sum is σ = 151487380. Its totient is φ = 151338240.

The previous prime is 151412801. The next prime is 151412827. The reversal of 151412809 is 908214151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97713225 + 53699584 = 9885^2 + 7328^2 .

It is a cyclic number.

It is not a de Polignac number, because 151412809 - 2³ = 151412801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151412801) 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, 34152 + ... + 38329.

It is an arithmetic number, because the mean of its divisors is an integer number (37871845).

Almost surely, 2^151412809 is an apocalyptic number.

It is an amenable number.

151412809 is a deficient number, since it is larger than the sum of its proper divisors (74571).

151412809 is an equidigital number, since it uses as much as digits as its factorization.

151412809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74570.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 151412809 is about 12304.9912230769. The cubic root of 151412809 is about 532.9922229809.

The spelling of 151412809 in words is "one hundred fifty-one million, four hundred twelve thousand, eight hundred nine".