157769090 has 16 divisors (see below), whose sum is σ = 284127480. Its totient is φ = 63075840.

The previous prime is 157769081. The next prime is 157769099. The reversal of 157769090 is 90967751.

157769090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157769081) and next prime (157769099).

It can be written as a sum of positive squares in 4 ways, for example, as 151117849 + 6651241 = 12293^2 + 2579^2 .

It is not an unprimeable number, because it can be changed into a prime (157769099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36146 + ... + 40274.

Almost surely, 2^157769090 is an apocalyptic number.

157769090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157769090 is a deficient number, since it is larger than the sum of its proper divisors (126358390).

157769090 is a wasteful number, since it uses less digits than its factorization.

157769090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7957.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 157769090 is about 12560.6166249910. The cubic root of 157769090 is about 540.3485290035.

The spelling of 157769090 in words is "one hundred fifty-seven million, seven hundred sixty-nine thousand, ninety".