137550473 has 2 divisors, whose sum is σ = 137550474. Its totient is φ = 137550472.

The previous prime is 137550461. The next prime is 137550487. The reversal of 137550473 is 374055731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137545984 + 4489 = 11728^2 + 67^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137550473 is a prime.

It is equal to p_7781615 and since 137550473 and 7781615 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (137550403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68775236 + 68775237.

It is an arithmetic number, because the mean of its divisors is an integer number (68775237).

Almost surely, 2^137550473 is an apocalyptic number.

It is an amenable number.

137550473 is a deficient number, since it is larger than the sum of its proper divisors (1).

137550473 is an equidigital number, since it uses as much as digits as its factorization.

137550473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 137550473 is about 11728.1913780429. The cubic root of 137550473 is about 516.2032042741.

The spelling of 137550473 in words is "one hundred thirty-seven million, five hundred fifty thousand, four hundred seventy-three".