151979473 has 4 divisors (see below), whose sum is σ = 160919460. Its totient is φ = 143039488.

The previous prime is 151979449. The next prime is 151979491. The reversal of 151979473 is 374979151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374979151 = 11717 ⋅32003.

It can be written as a sum of positive squares in 2 ways, for example, as 101042704 + 50936769 = 10052^2 + 7137^2 .

It is a cyclic number.

It is not a de Polignac number, because 151979473 - 2²¹ = 149882321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151970473) 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, 4469968 + ... + 4470001.

It is an arithmetic number, because the mean of its divisors is an integer number (40229865).

Almost surely, 2^151979473 is an apocalyptic number.

It is an amenable number.

151979473 is a deficient number, since it is larger than the sum of its proper divisors (8939987).

151979473 is an equidigital number, since it uses as much as digits as its factorization.

151979473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8939986.

The product of its digits is 238140, while the sum is 46.

The square root of 151979473 is about 12327.9954980524. The cubic root of 151979473 is about 533.6563048556.

The spelling of 151979473 in words is "one hundred fifty-one million, nine hundred seventy-nine thousand, four hundred seventy-three".