149031703581 has 8 divisors (see below), whose sum is σ = 198711375360. Its totient is φ = 99353250432.

The previous prime is 149031703577. The next prime is 149031703591. The reversal of 149031703581 is 185307130941.

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

It is not a de Polignac number, because 149031703581 - 2² = 149031703577 is a prime.

It is a super-2 number, since 2×149031703581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149031703591) 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, 34701 + ... + 547053.

It is an arithmetic number, because the mean of its divisors is an integer number (24838921920).

Almost surely, 2^149031703581 is an apocalyptic number.

It is an amenable number.

149031703581 is a deficient number, since it is larger than the sum of its proper divisors (49679671779).

149031703581 is an equidigital number, since it uses as much as digits as its factorization.

149031703581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609315.

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 149031703581 in words is "one hundred forty-nine billion, thirty-one million, seven hundred three thousand, five hundred eighty-one".