151244609 has 4 divisors (see below), whose sum is σ = 152399280. Its totient is φ = 150089940.

The previous prime is 151244581. The next prime is 151244627. The reversal of 151244609 is 906442151.

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, and also an emirpimes, since its reverse is a distinct semiprime: 906442151 = 1489 ⋅608759.

It is a cyclic number.

It is not a de Polignac number, because 151244609 - 2¹⁶ = 151179073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151244689) 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, 577139 + ... + 577400.

It is an arithmetic number, because the mean of its divisors is an integer number (38099820).

Almost surely, 2^151244609 is an apocalyptic number.

It is an amenable number.

151244609 is a deficient number, since it is larger than the sum of its proper divisors (1154671).

151244609 is a wasteful number, since it uses less digits than its factorization.

151244609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154670.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 151244609 is about 12298.1546989782. The cubic root of 151244609 is about 532.7947881024.

The spelling of 151244609 in words is "one hundred fifty-one million, two hundred forty-four thousand, six hundred nine".