149443997541 has 16 divisors (see below), whose sum is σ = 201352694400. Its totient is φ = 98584734528.

The previous prime is 149443997513. The next prime is 149443997543. The reversal of 149443997541 is 145799344941.

It is a happy number.

It is not a de Polignac number, because 149443997541 - 2⁷ = 149443997413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149443997543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54321 + ... + 549398.

It is an arithmetic number, because the mean of its divisors is an integer number (12584543400).

Almost surely, 2^149443997541 is an apocalyptic number.

It is an amenable number.

149443997541 is a deficient number, since it is larger than the sum of its proper divisors (51908696859).

149443997541 is a wasteful number, since it uses less digits than its factorization.

149443997541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604588.

The product of its digits is 19595520, while the sum is 60.

The spelling of 149443997541 in words is "one hundred forty-nine billion, four hundred forty-three million, nine hundred ninety-seven thousand, five hundred forty-one".