766740153 has 4 divisors (see below), whose sum is σ = 1022320208. Its totient is φ = 511160100.

The previous prime is 766740133. The next prime is 766740157. The reversal of 766740153 is 351047667.

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.

It is not a de Polignac number, because 766740153 - 2²¹ = 764643001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (766740157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127790023 + ... + 127790028.

It is an arithmetic number, because the mean of its divisors is an integer number (255580052).

Almost surely, 2^766740153 is an apocalyptic number.

It is an amenable number.

766740153 is a deficient number, since it is larger than the sum of its proper divisors (255580055).

766740153 is a wasteful number, since it uses less digits than its factorization.

766740153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255580054.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 766740153 is about 27690.0731851687. The cubic root of 766740153 is about 915.2703683094.

The spelling of 766740153 in words is "seven hundred sixty-six million, seven hundred forty thousand, one hundred fifty-three".