135423730 has 32 divisors (see below), whose sum is σ = 263718000. Its totient is φ = 49773312.

The previous prime is 135423719. The next prime is 135423749. The reversal of 135423730 is 37324531.

It can be written as a sum of positive squares in 8 ways, for example, as 83338641 + 52085089 = 9129^2 + 7217^2 .

It is a super-2 number, since 2×135423730² = 36679173294225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27496 + ... + 32044.

Almost surely, 2^135423730 is an apocalyptic number.

135423730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135423730 is a deficient number, since it is larger than the sum of its proper divisors (128294270).

135423730 is a wasteful number, since it uses less digits than its factorization.

135423730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 135423730 is about 11637.1701886670. The cubic root of 135423730 is about 513.5289405585.

The spelling of 135423730 in words is "one hundred thirty-five million, four hundred twenty-three thousand, seven hundred thirty".