149387352577 has 4 divisors (see below), whose sum is σ = 149451222960. Its totient is φ = 149323482196.

The previous prime is 149387352557. The next prime is 149387352589. The reversal of 149387352577 is 775253783941.

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 a de Polignac number, because none of the positive numbers 2^k-149387352577 is a prime.

It is a super-2 number, since 2×149387352577² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149387352557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31931683 + ... + 31936360.

It is an arithmetic number, because the mean of its divisors is an integer number (37362805740).

Almost surely, 2^149387352577 is an apocalyptic number.

It is an amenable number.

149387352577 is a deficient number, since it is larger than the sum of its proper divisors (63870383).

149387352577 is an equidigital number, since it uses as much as digits as its factorization.

149387352577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63870382.

The product of its digits is 44452800, while the sum is 61.

The spelling of 149387352577 in words is "one hundred forty-nine billion, three hundred eighty-seven million, three hundred fifty-two thousand, five hundred seventy-seven".