137746154430557 has 4 divisors (see below), whose sum is σ = 137746368403680. Its totient is φ = 137745940457436.

The previous prime is 137746154430433. The next prime is 137746154430569. The reversal of 137746154430557 is 755034451647731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137746154430557 - 2³² = 137741859463261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137746154430557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137746154400557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106018007 + ... + 107309412.

It is an arithmetic number, because the mean of its divisors is an integer number (34436592100920).

Almost surely, 2^{137746154430557} is an apocalyptic number.

It is an amenable number.

137746154430557 is a deficient number, since it is larger than the sum of its proper divisors (213973123).

137746154430557 is an equidigital number, since it uses as much as digits as its factorization.

137746154430557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213973122.

The product of its (nonzero) digits is 148176000, while the sum is 62.

The spelling of 137746154430557 in words is "one hundred thirty-seven trillion, seven hundred forty-six billion, one hundred fifty-four million, four hundred thirty thousand, five hundred fifty-seven".