149153539573 has 8 divisors (see below), whose sum is σ = 152989499960. Its totient is φ = 145362444480.

The previous prime is 149153539537. The next prime is 149153539589. The reversal of 149153539573 is 375935351941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32731322724 + 116422216849 = 180918^2 + 341207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149153539573 - 2²⁹ = 148616668661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149153539373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11209590 + ... + 11222887.

It is an arithmetic number, because the mean of its divisors is an integer number (19123687495).

Almost surely, 2^149153539573 is an apocalyptic number.

It is an amenable number.

149153539573 is a deficient number, since it is larger than the sum of its proper divisors (3835960387).

149153539573 is a wasteful number, since it uses less digits than its factorization.

149153539573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22432647.

The product of its digits is 7654500, while the sum is 55.

The spelling of 149153539573 in words is "one hundred forty-nine billion, one hundred fifty-three million, five hundred thirty-nine thousand, five hundred seventy-three".