152136779 has 4 divisors (see below), whose sum is σ = 152357640. Its totient is φ = 151915920.

The previous prime is 152136769. The next prime is 152136799. The reversal of 152136779 is 977631251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 152136779 - 2¹⁶ = 152071243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152136739) 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, 109394 + ... + 110775.

It is an arithmetic number, because the mean of its divisors is an integer number (38089410).

Almost surely, 2^152136779 is an apocalyptic number.

152136779 is a deficient number, since it is larger than the sum of its proper divisors (220861).

152136779 is an equidigital number, since it uses as much as digits as its factorization.

152136779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220860.

The product of its digits is 79380, while the sum is 41.

The square root of 152136779 is about 12334.3738795287. The cubic root of 152136779 is about 533.8403612734.

The spelling of 152136779 in words is "one hundred fifty-two million, one hundred thirty-six thousand, seven hundred seventy-nine".