149342914561 has 4 divisors (see below), whose sum is σ = 151791159124. Its totient is φ = 146894670000.

The previous prime is 149342914529. The next prime is 149342914613. The reversal of 149342914561 is 165419243941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74455308225 + 74887606336 = 272865^2 + 273656^2 .

It is a cyclic number.

It is not a de Polignac number, because 149342914561 - 2⁵ = 149342914529 is a prime.

It is a super-2 number, since 2×149342914561² (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 (149342911561) 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, 1224122190 + ... + 1224122311.

It is an arithmetic number, because the mean of its divisors is an integer number (37947789781).

Almost surely, 2^149342914561 is an apocalyptic number.

It is an amenable number.

149342914561 is a deficient number, since it is larger than the sum of its proper divisors (2448244563).

149342914561 is an equidigital number, since it uses as much as digits as its factorization.

149342914561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448244562.

The product of its digits is 933120, while the sum is 49.

The spelling of 149342914561 in words is "one hundred forty-nine billion, three hundred forty-two million, nine hundred fourteen thousand, five hundred sixty-one".