137550001 has 2 divisors, whose sum is σ = 137550002. Its totient is φ = 137550000.

The previous prime is 137549947. The next prime is 137550019. The reversal of 137550001 is 100055731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136328976 + 1221025 = 11676^2 + 1105^2 .

It is an emirp because it is prime and its reverse (100055731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137550001 is a prime.

It is not a weakly prime, because it can be changed into another prime (137550071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68775000 + 68775001.

It is an arithmetic number, because the mean of its divisors is an integer number (68775001).

Almost surely, 2^137550001 is an apocalyptic number.

It is an amenable number.

137550001 is a deficient number, since it is larger than the sum of its proper divisors (1).

137550001 is an equidigital number, since it uses as much as digits as its factorization.

137550001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 137550001 is about 11728.1712555709. The cubic root of 137550001 is about 516.2026138286.

The spelling of 137550001 in words is "one hundred thirty-seven million, five hundred fifty thousand, one".