152049779 has 4 divisors (see below), whose sum is σ = 173771184. Its totient is φ = 130328376.

The previous prime is 152049769. The next prime is 152049787. The reversal of 152049779 is 977940251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977940251 = 5521 ⋅177131.

It is a cyclic number.

It is not a de Polignac number, because 152049779 - 2¹² = 152045683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152049769) 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, 10860692 + ... + 10860705.

It is an arithmetic number, because the mean of its divisors is an integer number (43442796).

Almost surely, 2^152049779 is an apocalyptic number.

152049779 is a deficient number, since it is larger than the sum of its proper divisors (21721405).

152049779 is an equidigital number, since it uses as much as digits as its factorization.

152049779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21721404.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 152049779 is about 12330.8466457093. The cubic root of 152049779 is about 533.7385823181.

The spelling of 152049779 in words is "one hundred fifty-two million, forty-nine thousand, seven hundred seventy-nine".