136923345 has 64 divisors (see below), whose sum is σ = 266649600. Its totient is φ = 66251520.

The previous prime is 136923341. The next prime is 136923349. The reversal of 136923345 is 543329631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (136923341) and next prime (136923349).

It is not a de Polignac number, because 136923345 - 2² = 136923341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136923341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106416 + ... + 107694.

It is an arithmetic number, because the mean of its divisors is an integer number (4166400).

Almost surely, 2^136923345 is an apocalyptic number.

136923345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136923345 is a deficient number, since it is larger than the sum of its proper divisors (129726255).

136923345 is a wasteful number, since it uses less digits than its factorization.

136923345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1361 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 136923345 is about 11701.4249132317. The cubic root of 136923345 is about 515.4175079195.

The spelling of 136923345 in words is "one hundred thirty-six million, nine hundred twenty-three thousand, three hundred forty-five".