151009609 has 4 divisors (see below), whose sum is σ = 151090704. Its totient is φ = 150928516.

The previous prime is 151009577. The next prime is 151009613. The reversal of 151009609 is 906900151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151009609 - 2⁵ = 151009577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151009909) 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, 37687 + ... + 41500.

It is an arithmetic number, because the mean of its divisors is an integer number (37772676).

Almost surely, 2^151009609 is an apocalyptic number.

It is an amenable number.

151009609 is a deficient number, since it is larger than the sum of its proper divisors (81095).

151009609 is an equidigital number, since it uses as much as digits as its factorization.

151009609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81094.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 151009609 is about 12288.5967058896. The cubic root of 151009609 is about 532.5186974266.

The spelling of 151009609 in words is "one hundred fifty-one million, nine thousand, six hundred nine".