137223545520 has 80 divisors (see below), whose sum is σ = 432366692832. Its totient is φ = 35993057280.

The previous prime is 137223545489. The next prime is 137223545579. The reversal of 137223545520 is 25545322731.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4671957 + ... + 4701236.

Almost surely, 2^137223545520 is an apocalyptic number.

137223545520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137223545520 is an abundant number, since it is smaller than the sum of its proper divisors (295143147312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137223545520 is a wasteful number, since it uses less digits than its factorization.

137223545520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373270 (or 9373264 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 137223545520 in words is "one hundred thirty-seven billion, two hundred twenty-three million, five hundred forty-five thousand, five hundred twenty".