151145309 has 4 divisors (see below), whose sum is σ = 172737504. Its totient is φ = 129553116.

The previous prime is 151145299. The next prime is 151145341. The reversal of 151145309 is 903541151.

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: 903541151 = 863 ⋅1046977.

It is not a de Polignac number, because 151145309 - 2⁸ = 151145053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151145359) 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, 10796087 + ... + 10796100.

It is an arithmetic number, because the mean of its divisors is an integer number (43184376).

Almost surely, 2^151145309 is an apocalyptic number.

It is an amenable number.

151145309 is a deficient number, since it is larger than the sum of its proper divisors (21592195).

151145309 is an equidigital number, since it uses as much as digits as its factorization.

151145309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21592194.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 151145309 is about 12294.1168450605. The cubic root of 151145309 is about 532.6781600219.

The spelling of 151145309 in words is "one hundred fifty-one million, one hundred forty-five thousand, three hundred nine".