769740154 has 4 divisors (see below), whose sum is σ = 1154610234. Its totient is φ = 384870076.

The previous prime is 769740143. The next prime is 769740221. The reversal of 769740154 is 451047967.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451047967 = 53 ⋅8510339.

It can be written as a sum of positive squares in only one way, i.e., 682411129 + 87329025 = 26123^2 + 9345^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 769740154.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 192435037 + ... + 192435040.

Almost surely, 2^769740154 is an apocalyptic number.

769740154 is a deficient number, since it is larger than the sum of its proper divisors (384870080).

769740154 is a wasteful number, since it uses less digits than its factorization.

769740154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384870079.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 769740154 is about 27744.1913560298. The cubic root of 769740154 is about 916.4625317047.

The spelling of 769740154 in words is "seven hundred sixty-nine million, seven hundred forty thousand, one hundred fifty-four".